Lucas from Mother 3

Information
Lucas was a small kid when he went on an adventure to stop the Pigmask Army and Porky in the Nowhere Islands

He was tasked with pulling the Dragon Needles and saving the word.

He traveled with Kumatora, Duster, and his dog, Boney.

Role in SUEAF
Lucas created Helltaker, Jester Guy Dude's second favorite game of all time, using Dark Polish Magic

He also is referenced by Snooze and JGD and no one else probably gets that.