Trivia

After recreating the late Paul Frees' "Ghost Host" voice for Disneyland's "Haunted Mansion Holiday" attraction, Corey was approached to record a new safety spiel for the beginning of the ride. He only agreed to do it as long as it was an addition and didn't replace any of Paul Frees' original dialogue (of which he is a big fan). This was not the case so he declined. The spiel was instead recorded by voice actor Joe Leahy. To date this has not been popular with Haunted Mansion enthusiasts and petitions are being drawn either to have Paul Frees reinstated or Corey to re-record it.

Long before voicing three of the major villains on Star Wars: The Clone Wars (2008) (Count Dooku, Ziro the Hutt and Cad Bane), Burton voiced Luke Skywalker for a 1979 Disney Read-Along book/record retelling the story of Star Wars: Episode IV - A New Hope (1977). A year later he looped some lines for Star Wars: Episode V - The Empire Strikes Back (1980). Only one of these ended up in the film: Rebel pilot Hobbie's line "I've been hit!". During this session, he met Mark Hamill, who asked Burton to sign the Star Wars Read-Along record as "Luke 2".

Voice double for Christopher Lee.

Was called in to dub some of Deems Taylor's dialogue for the 2000 restoration of Fantasia (1940) which is the longer, roadshow version that hadn't been seen since the film's initial release. The reason for this was because most of the original soundtrack was not found and what was found was in terrible condition.

His voice for the Decepticon Shockwave closely mirror's David Warner. Years later, he would voice Sark (Warner's character from TRON) in Kingdom Hearts II.

Portrayed Starlab Controller Jerry Lyden on the syndicated radio show "Alien Worlds" (1979).

Is on the Autism Spectrum Disorder. Because of it and his shyness he wasn't sure he wanted to voice act but decided to move forward.