Hart is nicknamed "The Hitman", and often dubbed "The Best There Is, the Best There Was, and the Best There Ever Will Be". Hart usually wrestled in a pink attire and, during his time as The Hart Foundation, the tag team was nicknamed "The Pink and Black Attack", a nickname Hart used for himself during his singles career. Hart used the Sharpshooter as his finishing maneuver. He learned the hold from Konnan and Pat Patterson named it. Before ending his matches, Hart usually employed a sequence of five moves: inverted atomic drop, Russian leg sweep, backbreaker, elbow drop from the second rope, and Sharpshooter, being known as the "Five Moves of Doom". During his time in the original Hart Foundation, he and Jim Neidhart performed the Hart Attack as their finishing manoeuver. Hart is a member of the Hart wrestling family and a second-generation wrestler. A major international draw within professional wrestling, he has been credited with changing the perception of mainstream North-American professional wrestling in the early 1990s by bringing technical in-ring performance to the forefront. Hart is widely regarded as one of the greatest professional wrestlers of all time

He is a five-time WWF Champion and a two-time WCW World Heavyweight Champion. Hart has most combined days as WWF Champion during the 1990s (654) and was the first WCW World Heavyweight Champion born outside the United States. He is the second WWF Triple Crown Champion and fifth (with Goldberg) WCW Triple Crown Champion, and the first man to win both the WWF and WCW Triple Crown Championships. Hart is also the 1994 Royal Rumble match winner (with Lex Luger), and the only two-time King of the Ring, winning the 1991 tournament and the first King of the Ring pay-per-view in 1993. As part of the Hart Foundation he won the WWF Tag Team Championship twice, and the WWE has consistently ranked the original Hart Foundation as one of the greatest tag teams in wrestling history. Stone Cold Steve Austin inducted him into the WWE Hall of Fame class of 2006. In 2019, Hart became one of seven people to enter the WWE Hall of Fame twice, when he was inducted again as a member of The Hart Foundation, with brother-in-law Jim Neidhart.

The eighth child of wrestling patriarch Stu Hart and his wife Helen, Bret Hart was born in Calgary, Alberta, Canada into the Hart wrestling family. Hart is a dual citizen of Canada and the United States since his mother Helen was born in New York. Hart grew up in a household with eleven siblings, seven brothers Smith, Bruce, Keith, Wayne, Dean, Ross and Owen, as well as four sisters, Ellie, Georgia, Alison and Diana. His introduction to professional wrestling came at an early age. As a child, he witnessed his father training future wrestlers like Superstar Billy Graham in the Dungeon, his household basement which served as a training room. Before school, Hart's father, also a wrestling promoter, had him hand out fliers to local wrestling shows.
Hart's first work in wrestling involved pulling out lucky numbers out of a metal box during intermission at the Stampede Wrestling shows when he was four years old. When he got slightly older, he would sell programs to the shows.

Like his father, Hart was an excellent amateur wrestler since an early age, having begun training as a nine-year-old. At Ernest Manning High School, Hart became a standout student in the amateur wrestling division. Hart has stated that he joined the wrestling team "for the sole reason that my dad expected me to... no-one asked me to." He won significant championships in tournaments throughout Alberta, including the 1974 city championships in Calgary. He scored a victory over competitor Bob Eklund – who would go on to become a Canadian Interuniversity Sport national champion, winning "Outstanding Wrestler of the Year 1980–1981" – en route to the championship. Hart considered the medals to be one of his most prized possessions.

In 1976, Hart began working for his father's Stampede Wrestling promotion in Calgary. Hart first began helping the promotion by refereeing matches. At a 1978 event in Saskatoon, Saskatchewan, a wrestler was unable to perform his match, forcing Stu to ask his son to stand in as a replacement. Before long, he became a regular contender, eventually partnering with brother Keith to win the Stampede International Tag Team Championship four times. He remained one of Stampede's most successful performers until the promotion, along with several wrestlers, was acquired by the World Wrestling Federation (WWF) in August 1984.

Hart was asked to start out in the WWF as a singles wrestler with a cowboy gimmick but refused, stating that where he comes from "if you called yourself a cowboy, you'd better be one." He made his televised WWF debut on August 29, 1984, in a tag team match where he teamed with the Dynamite Kid. On September 11, in Poughkeepsie, New York, Hart defeated Aldo Marino in his televised debut singles match, which aired on the September 29 episode of Superstars of Wrestling. In 1985, after acquiring the nickname of "Hit Man", he requested to join Jimmy Hart's (no relation) heel stable, The Hart Foundation, which included brother-in-law Jim "The Anvil" Neidhart. Bret began to increasingly team with Neidhart, in order to build the promotion's tag team division. The "Hart Foundation" name then became exclusive to Bret, Neidhart and manager Jimmy Hart, due to the similar family names of both team members and their manager. Bret's agile, technical style – which earned him the moniker "The Excellence of Execution" (coined by Gorilla Monsoon) – created a contrast with his partner Neidhart's strength and brawling skills. During this time, Hart began wearing his signature sunglasses, initially to conceal his nervousness during promos.

The Hart Foundation made its pay-per-view debut at WrestleMania 2 in 1986 as participants of a 20-man battle royal which also included NFL stars. The duo were the final two men whom André the Giant eliminated to win the battle royal. Brett has mentioned that Andre asked them to keep the NFL players away from him during this match, and is why they worked with Andre most of the match. On the February 7th edition of Superstars, in Tampa, Florida, the Harts defeated Bulldogs for their first WWF Tag Team Championship when the referee of the match, "Dangerous" Danny Davis helped the Harts to win the match. On the October 27 edition of Superstars, the Hart Foundation dropped their title to Strike Force (Rick Martel and Tito Santana) after Neidhart submitted to a Boston crab applied by Martel, ending their 10-month reign.

Bret Hart started a slow face turn at WrestleMania IV in spring 1988. Hart and Bad News Brown were the last 2 competitors in a 20-man Battle Royal and looked to be co-existing heels after eliminating the Junkyard Dog. But Brown then double crossed Hart, hitting him with his Ghetto Blaster finisher before throwing him over the top rope for the win. Immediately after being declared the winner and being awarded a huge trophy, Hart attacked Brown and smashed up the trophy starting his face turn. Neidhart eventually joined Bret's side in the feud with Brown causing a rift between the Foundation and manager Jimmy Hart.

In the fall of 1989, the Hart Foundation split for a while and both wrestled as singles for the first time in almost four years. Hart had a series of matches against Mr. Perfect, while Neidhart began a feud with The Warlord. However, by the end of November 1989, Hart and Neidhart resumed their partnership and were booked into a series of tag team matches with fellow fan-favorite tag team The Rockers (Shawn Michaels and Marty Jannetty). This was unusual at the time as fan favorites rarely faced each other in the ring; also, although no hostilities between the two were apparent at this time, it marked the genesis of what would become a long-running rivalry between Hart and Michaels. Most of these early Hart Foundation-Rockers matches ended in time-limit draws.

At SummerSlam 90, the Hart Foundation faced Demolition (Crush & Smash) in a two out of three falls match for the tag title. The Hart Foundation managed to get the win and their second WWF Tag Team Championship. During their second reign as champions, the Harts met the Rockers again, this time in a series of title and non-title matches. On October 30, 1990, Jannetty and Michaels did actually defeat the Hart Foundation in a two out of three falls match in Fort Wayne, Indiana to seemingly win the title. However, the WWE (WWF) has never officially recognized The Rockers' champion status. During the match the top rope broke by accident making the match a disjointed affair that would require serious clean up before it could be shown on TV. The Rockers actually defended the WWF Tag Team title against Power and Glory (Paul Roma and Hercules) on November 3, 1990. Shortly after November 3 it was decided to not air the title change and that the title would revert to the Hart Foundation. In his book Michaels claims that the Hart Foundation had politicked to keep the title. Michaels claim is contradicted by other claims, including one that the WWF had actually fired Neidhart, and another that his contract had ended and an agreement to re-sign hadn't been reached which forced the title change, but that after the match the two sides came to an agreement and Neidhart was brought back with the broken ring rope used as the reason to nullify the match. The Rockers were never officially credited with a title win but footage from the match was shown prior to Jannetty's WWF return in 1995. The match can be seen in its entirety on the DVD The Shawn Michaels Story: Heartbreak & Triumph. Because it never aired, the match was not clipped and thus is shown in full with no commentary; the only edit being after the second fall when a ring crew arrived to reattach the broken rope.

The Hart Foundation's second title reign lasted until WrestleMania VII when they were defeated by The Nasty Boys (Jerry Sags and Brian Knobs), when Knobs nailed Neidhart over the head with Jimmy Hart's helmet (Jimmy Hart managed the Nasty Boys at the time). The Hart Foundation split after WrestleMania VII, and Bret then focused on his singles career.

Hart won his first WWF Intercontinental Championship by defeating Mr. Perfect with the Sharpshooter at SummerSlam in 1991. Bret later pinned Piper for his second Intercontinental Championship at WrestleMania VIII later that year. At a Wrestling Challenge taping on July 21, 1992, Hart defeated Shawn Michaels, with the Intercontinental Championship belt suspended above the ring, in the WWF's first ever ladder match. Hart dropped the Intercontinental Championship to his brother-in-law, Davey Boy Smith, in Hart's first WWF pay-per-view main event at SummerSlam in August 1992, held before over 80,000 fans at Wembley Stadium. WWE named the match as the greatest in the history of SummerSlam.

Hart won the WWF Championship from Ric Flair at a Superstars taping at Saskatchewan Place in Saskatoon, Saskatchewan on October 12 of that year. Hart dislocated one of the fingers on his left hand during the match and popped it back in himself so it would not affect the rest of the match. H would lose the title to Yokozuna in his first WrestleMania main event at WrestleMania IX, after interference from Mr. Fuji. Fuji then challenged Hulk Hogan, who had come out to help Hart, to compete for the title; Hogan then won his fifth WWF Championship from Yokozuna.

At WrestleMania X Hart lost a match against his brother Owen but went on to defeat Yokozuna for his second WWF Championship that same night. Hart eventually lost his WWF Championship at Survivor Series in a submission match against Bob Backlund where the manager of either competitor (Davey Boy Smith for Hart, Owen for Backlund) would have to "throw in the towel" for the wrestler they were representing. When Hart was in Backlund's crossface chickenwing and Davey Boy was kayfabe knocked out, Owen persuaded his mother Helen to throw in the towel for Hart, giving Backlund the championship victory.

In a no disqualification match at Survivor Series Hart defeated Diesel to commence his third reign. At WrestleMania XII Bret had a 60-minute Iron Man match with Shawn Michaels. The wrestler with the most decisions during the 60 minutes would win the match and the WWF Championship. With less than a minute left on the clock and the score still 0–0, Michaels jumped from the middle rope; his legs were caught by Hart, and Hart locked in his Sharpshooter. However, Michaels did not submit in the last 30 seconds, so the match ended in a tie. WWF President Gorilla Monsoon ruled that the match would continue in sudden death overtime. Michaels hit a superkick to win the championship.

A Fatal Four-Way between Austin and the participants he eliminated after re-entering the ring during the Royal Rumble (Vader, The Undertaker, and Hart) was set up for In Your House 13: Final Four, with the winner becoming the number one contender. After then-champion Shawn Michaels relinquished the belt, though, the match officially became for the WWF Championship. Hart defeated Austin, Vader, and The Undertaker in the Fatal Four-Way. However, Austin made sure Hart's fourth reign was short-lived, costing him a title match against Sid the next night on Raw. At WrestleMania 13, Hart and Austin had their rematch in a submission match. In the end, Hart locked the Sharpshooter on a bloody Austin, who refused to give up. In fact, Austin never quit, but passed out from the blood loss and pain. Ken Shamrock, the special guest referee, awarded Hart the match, after which he continued to assault Austin, thus turning heel for the first time since 1988.

Hart vowed that if he could not defeat The Undertaker for the WWF Championship at SummerSlam, he would never wrestle in the United States again. The Undertaker agreed to the match, and Hart won his fifth and last WWF Championship after spitting in guest referee Shawn Michaels' face; Michaels swung a steel chair in retaliation, which accidentally struck the Undertaker. Michaels, who, as part of another pre-match stipulation, would be banned from wrestling in the United States if he did not remain impartial as referee, had no option but to count the pinfall, giving his rival Hart the victory.

Around this time, Hart's on-air rivalry with Vince McMahon also escalated. A heated ringside altercation between the two led many fans to dislike McMahon, who at the time was being exposed as owner of the WWF more and more frequently on-air. Although Hart had signed a 20-year contract back in 1996, the WWF was in a rough financial position by late 1997 and could no longer afford to honor the contract. Although Hart was arguably the biggest wrestler in the world during the mid-1990s, McMahon also felt that the value of his character was beginning to wane, and he encouraged Hart to approach World Championship Wrestling (WCW) about a contract, hopefully one similar to their original offer. This was despite Hart's reluctance to leave the WWF and willingness to re-negotiate. Hart subsequently signed a three-year contract with WCW. His final match with the WWF would be a title match against his real-life rival Shawn Michaels at Survivor Series in Montreal. Hart did not want to end his WWF career with a loss to Michaels in his home country particularly with the context of their nationality-fueled feud; and offered to lose, forfeit or otherwise give over the belt to Michaels in any other way that McMahon wanted. McMahon agreed to Hart's idea of forfeiting the championship the next night on Raw Is War or losing it a few weeks later.

Although Hart stated to McMahon he would not take the WWF Championship with him to WCW television and despite insistence from then-WCW President Eric Bischoff that Hart would join WCW with a "clean slate", McMahon was still concerned and paranoid; this led to him breaking his word in what eventually came to be known as the Montreal Screwjob. Even though Hart did not submit to the Sharpshooter, referee Earl Hebner called for the bell as if he had, on McMahon's orders. This resulted in Hart "losing" the WWF Championship to Michaels. The night ended with an irate Hart spitting in McMahon's face, destroying television equipment, and punching McMahon backstage in front of Gerald Brisco, Pat Patterson, and McMahon's son Shane. Hart also confronted Michaels backstage about the match finish.

Hart's three-year contract with World Championship Wrestling (WCW) included a salary of $2.5 million per year (a $1 million annual increase from his WWF contract), as well as a light schedule and a measure of creative control over his television character. Hart won the WCW World Heavyweight Championship tournament by defeating Perry Saturn, Billy Kidman, Sting, and Chris Benoit at Mayhem. On December 7, Hart and Goldberg won the WCW World Tag Team Championship from Creative Control, making Hart a double champion. Hart and Goldberg lost the tag team titles to The Outsiders on the December 13 episode of Nitro.

At Starrcade, Hart defended his WCW World Heavyweight Championship against Goldberg. During the match, Hart was struck with a thrust kick to the head, resulting in a severe concussion. Hart later speculated that he may have suffered up to three additional concussions within matches over the course of that day along with the days immediately following Starrcade, having been unaware of the severity of his injuries. For example, Hart placed Goldberg on the post in a figure four leglock which ended with Hart hitting his head on the concrete floor when Goldberg failed to receive the move correctly. The sum total of those injuries left Hart with post-concussion syndrome and ultimately forced his retirement from professional wrestling. Hart later claimed that Goldberg "had a tendency to injure everyone he worked with." Referee Roddy Piper rang the bell when Hart held Goldberg in the Sharpshooter, although Goldberg did not submit. Piper simply walked away, leaving both Goldberg and Hart bewildered.

Out of respect for Goldberg, Hart vacated the WCW World Heavyweight Championship on the December 20 episode of Nitro and suggested that he, without the championship advantage, face Goldberg that night to determine the true champion. During the match, Scott Hall and Kevin Nash came to the ring looking to attack Goldberg with baseball bats. Hart convinced them to stop, then hit Goldberg with one of the bats, turning heel once again. The three continued to beat down Goldberg and were eventually joined by Jeff Jarrett. Hart regained the championship, even though it was Roddy Piper who was covering Goldberg (to try and protect him) when the three count was made.

Hart vacated the title in late January 2000 when he was forced to withdraw from the main event of WCW's Souled Out due to his injuries. His final WCW appearance occurred on the September 6, 2000 episode of Thunder, in a promo where he confronted Goldberg on the injury he sustained nine months prior. WCW terminated Hart's contract via FedEx letter on October 20, 2000, due to his ongoing incapacity, and he announced his retirement from professional wrestling 6 days later on October 26, 2000.

This skin was made for me by Yondee.