For fans of the original Star Trek, here's William Shatner as captain Kirk showing young Charlie X a thing or two about judo*:
Gotta love those Federation gis!
Although Shatner does a reasonably good roll, the rest of his judo leaves quite a bit to be desired, in my view. I'd certainly back legendary tough guy actor and judo black belt James Cagney against him (click the link for an awesome clip), and similarly British judoka and Bond Girl Honor Blackman:
Unfortunately I couldn't find the clip from Goldfinger of Blackman as the fabulously named "Pussy Galore" throwing Bond (Sean Connery) all over the shop. Maybe someone can help me out?
*Spotted on Sensei Strange's aikido blog.