William Reid "Bill" Eadie (born December 27, 1947) is an American retired professional wrestler who has competed under the names of Ax as part of Demolition and The Masked Superstar. He was a high school teacher and coach at Cambridge High School in Cambridge, Ohio, and at East Liverpool, Ohio.

Eadie's first match was on December 15, 1972, under the name "the Paramedic". Throughout 1973, he wrestled under a mask as the tag team "Para-Medics" in the Sheik's Detroit territory. He then wrestled in Pittsburgh, Detroit, the WWWF, and the IWA as "Bolo Mongol", the new partner of his trainer, Geeto Mongol. He soon entered the Mid-Atlantic Championship Wrestling territory under the management of Boris Malenko and donned a mask as "the Masked Superstar".

He was the first wrestler (along with Blackjack Mulligan) to have one-hour cage matches, then have a series of "12" ninety-minute cage matches, against Mulligan. It is believed that neither feat of hour or hour and a half cage matches has since been performed by any wrestlers. He was one of the first wrestlers to body slam André the Giant.

In 1986, he returned to the World Wrestling Federation and became "Super Machine" with André the Giant as "Giant Machine" and Blackjack Mulligan as "Big Machine". Eadie was the primary mouthpiece of the team. The three Machines were introduced as rivals of Bobby Heenan and his massive tag team of Big John Studd and King Kong Bundy. (The Machines' masks and gimmick were copied from New Japan Pro-Wrestling character "Super Strong Machine", played by Japanese wrestler Junji Hirata). Eadie was a long time friend of André the Giant outside of wrestling, Eadie revealed in a 2016 interview that André was the godfather to his two daughters.

Demolition was an American professional wrestling tag team most prominent during the late 1980s and early 1990s in the World Wrestling Federation (WWF, now WWE) made up of Ax (Eadie), Smash (Barry Darsow), and later Crush (Brian Adams). In the WWF, Demolition were three-time WWF World Tag Team Champions, and hold the record for the most combined days as reigning champions with that championship.

Randy Colley and Bill Eadie created the Demolition gimmick and worked for the World Wrestling Federation (WWF). They debuted as a heel tag team on January 4, 1987, at the Springfield Civic Centre in Massachusetts, alongside manager Luscious Johnny V. Demolition wore studded black leather outfits and leather-covered hockey masks to the ring, which they removed to reveal face paint usually made up of some combination of black, white, red, or silver colors, though other colors were sometimes included. The tag team wore outfits similar to Lord Humungus of the 1981 film Mad Max 2: The Road Warrior, while their facepaint was reminiscent of hard rock band KISS. Demolition became known for their aggressive style in the ring and the way that they dominated their matches.

After only two more matches (wins over enhancement talent at TV tapings on January 5 and 6), Colley was replaced with Barry Darsow starting with a match filmed January 26, 1987 at the Sundome, Tampa FL and aired on the February 14, 1987 edition of Superstars. Eadie has stated that Colley was replaced because he was too recognizable to the fans as the man who previously performed as Moondog Rex. It wasn't long before Johnny Valiant sold their contracts to Mr. Fuji who became their manager.

At WrestleMania IV, Ax and Smash defeated Strike Force (Rick Martel and Tito Santana) to win their first WWF Tag Team Championship. As champions, they defeated a number of the top teams of the WWF, which at the time had a very talent-rich and hotly contested tag division, most notably the British Bulldogs and Hart Foundation.

Their first big challenge came in the summer of 1988, when The Powers of Pain (The Warlord and The Barbarian) entered the WWF and challenged them for the Tag Team Championship. During the elimination tag team match at Survivor Series, Mr. Fuji attacked Demolition and joined forces with the Powers of Pain. A double turn took place as Demolition turned face while the Powers of Pain turned heel.

Demolition defeated the Powers of Pain and Mr. Fuji in a tag team handicap match at WrestleMania V to retain the WWF World Tag Team Championship when they caught Fuji in the "Demolition Decapitation" (their finishing move). That day, Demolition became the longest reigning WWF World Tag Team Champions after breaking the previous 370 day record of The Valiant Brothers (Jimmy and Johnny). Subsequently, on May 12 Demolition's reign exceeded the 409-day third reign of The Fabulous Kangaroos with the WWWF United States Tag Team Championship, thus becoming the longest running holders of any tag team championship in WWF/WWWF history. They would eventually last a reign of 478 days. This record has since been broken.

They finally dropped the titles to the Brain Busters in a two out of three falls match on the July 29 Saturday Night's Main Event XXII (filmed July 18, 1989 in Worcester, Massachusetts at the Worcester Centrum) following outside interference from André the Giant who threw a chair into the ring for Anderson to use on Smash. On the November 4 edition of Superstars (taped on October 2), Demolition defeated the Brain Busters to regain their tag titles and win their second WWF Tag Team Championship.

Demolition next feuded with the new Heenan Family team, The Colossal Connection (André the Giant and Haku). On the December 30 edition of Superstars (taped on December 13), Demolition lost the tag titles to the Colossal Connection. At WrestleMania VI at the SkyDome in Toronto, Demolition defeated the Colossal Connection to regain the titles and win their third and final WWF World Tag Team Championship, and finally put an end to their feud with the Heenan Family. Due to his deteriorating physical condition, André never tagged in during the match with Haku facing Demolition on his own.

In the midst of this time period, Eadie also played opposite Hulk Hogan as "Jake Bullet" in the movie No Holds Barred.

Shortly after WrestleMania VI, the team quietly turned heel. This intensified when Brian Adams debuted in WWF and joined the team as Crush. In kayfabe it was claimed that this was a heinous scheme to gain a three-on-two advantage over other tag teams. (In reality, it was actually because Eadie had developed an allergy to shellfish which he attributed to his frequent trips to Japan, which hospitalized him, and WWF owner and head booker Vince McMahon wanted to add a third member to the team just in case the illness put Eadie out of action for an extended period of time.) Crush soon took a more active role, teaming with Smash while Ax faded into the background, becoming more of a manager. At this time Demolition used the "Freebird rule" to allow any two members to wrestle the matches. August 27, 1990 at Summer Slam Demolition lost the titles to the Hart Foundation in a two out of three falls match.

Soon after, due to the Legion of Doom (L.O.D.) now being on the WWF roster, Demolition's popularity began to decline and they regained the managerial services of Mr. Fuji in the fall of 1990. Shortly after, Ax left the WWF, with the on-air explanation being an order from kayfabe WWF President Jack Tunney that there could only be two members of Demolition. Demolition would continue to wrestle in both the WWF throughout the summer usually on the losing end of matches. They eventually broke up and the members went their separate ways.

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