Factual error: At the start of the movie when Algren first lands in Japan there are power lines. The movie is set in 1876, 2 years before being introduced to Japan in 1878.
Continuity mistake: In the ninja attack scene, when Tom Cruise stabs a ninja in the chest, in one shot the sword is poking out his back, but in the very next shot, it isn't.
Continuity mistake: In the final scene Algren has his horse on his left. The horse changes to Algren's right when Algren confronts his girlfriend.
Continuity mistake: After Algren is defeated during the first battle with the samurai, Katsumoto says something to his second in command who kneels next to him, however in the next shot the same man can be seen kneeling down again.
Chosen answer: I'm not 100% sure, but I think it may have been Jim Cummings. He does a lot of voiceovers for movie trailers, cartoon characters, songs and the like. He's the voice of Cat in CatDog, Winnie the Pooh, Tasmanian Devil and has had small roles in films like Shrek, Sinbad and Antz. Find out more about him at this address: http://us.imdb.com/name/nm0191906/.