Continuity mistake: Tom Cruise has a cushion on his seat when he is taken to meet the Japanese delegation in restaurant at the beginning, maybe to make up for his small stature. The first shot shows no extra cushion but on sitting there is one there. (00:06:20)
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.
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.
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/.