Jamie Thomason is an American voice and casting director for Disney.
He is best known as the head of casting for various Disney productions between 1991 and 2008. He has also worked on various other shows, including the final season of Hanna-Barbera's television adaptation of The Smurfs, A Pup Named Scooby-Doo, The Spectacular Spider-Man, and Bill & Ted's Excellent Adventures, which included George Carlin.
Thomason was the voice director when Pierce Brosnan narrated The Great Discovery and the original cut of the twelfth season in Thomas & Friends, but he was replaced by Pete Atkin when Michael Angelis and Michael Brandon resumed their roles narrating for the UK and US, respectively.
For Disney, he was the voice director for television series, such as Darkwing Duck, Buzz Lightyear of Star Command, Kim Possible, Dave the Barbarian, and The Buzz on Maggie.