Master Roshi
The Turtle Hermit, the most ancient martial arts master in the world... is an old pervert.
Master Roshi was Goku's first real martial arts teacher (not counting Grandpa Gohan), and stuck with him the longest as a friend and father figure. Sure, he's a goofy nose-bleeding pervert, sure, his power level is totally outdone early on, sure, Goku outdoes his original kamehameha almost immediately... but he's Roshi. And he's awesome. And he almost fought Broly for some reason.
Master Roshi
The Turtle Hermit, the most ancient martial arts master in the world... is an old pervert.
Master Roshi was Goku's first real martial arts teacher (not counting Grandpa Gohan), and stuck with him the longest as a friend and father figure. Sure, he's a goofy nose-bleeding pervert, sure, his power level is totally outdone early on, sure, Goku outdoes his original kamehameha almost immediately... but he's Roshi. And he's awesome. And he almost fought Broly for some reason.