OK, Segal was/is a real hard man. he used to be speacial forces and then he was a hitman for the CIA, all true. When he retired from that lark he got a job as a bodyguard to the stars and was protecting Kelly Le Brock (her from woman in red) when she was attacked one night. He did his job and took the attacker down and it happened to be seen by some movie0maker dude who then told him he should be on film. he resisted due to his murky past but the lure of the cash was too much.
All the above is fact and not his PR team making him sound like a hardman.
He is stgill to this day the 3rd highest ranked Aikidoka in the world and the highest outside of Japan.
Here he is back in the day in Japan training the Japs in their own art!
http://www.youtube.com/watch?v=Bu7aauJuQHY ignore the first few seconds, its not all still pics, just some kick-ass moves lol.
BTW, i know all that cos i started Aikido because of what i saw him do in his films.