Characters who are influenced and/or clearly modeled after the late Jeet Kune Do Master, Bruce Lee. Also characters who use Jeet Kune Do.
Spike Spiegel of Cowboy Bebop fights using Jeet Kune Do a concept of martial arts that Bruce Lee invented. In the session Waltz For Venus, Spike makes almost an exact reference to Lee's "Be like water" concept.
Rock Lee and Might Guy of Naruto are clearly modeled after Bruce Lee in their fighting style and appearance.