Burton first began working with Disney in 1976, when Jymn Magon hired him and several other new and veteran voice actors to do character voices for Disney Read-Along titles. He has a wide vocal range from voicing high characters, raspy characters, and baritone voices. His baritone voice is the reason why he took over Tony Jay's roles after his death in 2006.
He has also done a lot of narration work. In 2000, Burton was called in to dub over Deems Taylor's narration in Fantasia. This was done as when the restoration team was preparing Fantasia, some of Taylor's narration was missing or in too bad condition to be publicly released. So, Burton re-dubbed all of the film's dialogue to give it a consistent flow. He has also narrated several Disney documentaries and bonus features, such as The Story Behind Fun and Fancy Free, Bambi: The Magic Behind the Masterpiece, and The Jungle Book: The Making of a Musical Masterpiece. He also provided voice work in several attractions at Disney theme parks, most notably as the monorial tram narration at Disneyland and the Walt Disney World Resort.
He received an Annie Award for his work as Ludwig Von Drake in House of Mouse, as well as an Annie nomination for his voice work as Captain Hook in Return to Never Land and Jake and the Never Land Pirates. He also voiced the Narrator in Future-Worm!.
Outside of Disney, he is well-known for voicing Brawn, Shockwave, and Spike Witwicky in Transformers: The Movie; Brainiac in Static Shock; King Mumbo Jumbo and Stick Figure Baker in ChalkZone; Malware, Mr. Baumann, Brainstorm, Seebik, Fiskerton, V.V. Argost, Albedo, and Kane North in the Ben 10 franchise; Jaga and Tygus in the 2011 series of ThunderCats; and for being the current voice of Dr. N. Gin in the Crash Bandicoot video game franchise.