Nigel Uno/Numbuh 1 from Cartoon Networks Kids Next Door. This design is based on the single unaired episode of Galactic Kids Next Door.

Reskins:
Normal Numbuh 1: https://www.minecraftskins.com/skin/14436905/numbuh-1-redseign/
Fusion Fall Numbuh 1: https://www.minecraftskins.com/skin/14436939/fusion-fall-numbuh-1-redesign/

With a booger in his finger and a tear in his eye, Numbuh 1 seals the fate of the Earth. There are too many adults on Earth and GKND want to wipe it out. It's up to Numbuh 1 to decide. With a proud cry Galactic Kids Next Door Forever! He confirms Earths demise.

I don't know if I'm able to post the episode but you can look it up on YouTube!