Richard Simmons... LMAO!!!
Sorry to be a copy cat Jeremy.. but we share similar wish lists:
Bruce Lee, my hero since birth
Muhammad Ali, everyone's hero
Jack Breckenridge, best shooting coach in San Diego who has been known to hit his students with a boken on occasion
Miyamoto Musashi because this guy walked around with a wooden sword and beat youngsters wielding steel blades (so the legend goes anyway)
Any coach at Gunsite, because Cooper set up a great school
Gabe Suarez, because although many dislike him, I got along with him very well and learned A LOT
Mark Swain because I regret never studying judo and it looks fun.. were I much younger!
and of course Dan John.. everyone should have Dan on their list.