
Acting
He is probably best known as the voice of Disney's Goofy and the original Bozo the Clown, a part he played for a full decade beginning in 1946. He also provided the voice for Practical Pig, the pig who built the "house of bricks" in the Disney short Three Little Pigs, as well as both Sleepy and Grumpy in Snow White and the Seven Dwarfs, and the barks for Pluto the dog. Colvig worked for not only the Disney studio, but also the Warner Bros. animation studio , Fleischer Studios (Bluto, Gabby), and MGM, where he voiced a Munchkin in The Wizard of Oz.

Celebrating Mickey
as Goofy (voice) (archive sound)

Donald Duck's Christmas Favourites
as Goofy / Pluto (voice) (archive sound) (uncredited)

Classic Cartoon Favorites Volume 8: Holiday Celebration with Mickey and Pals
as Pluto (voice) (archive sound) (uncredited)

Walt Disney's Fables - Vol.6
as Goofy (voice) (archive sound) (uncredited)

Walt Disney's Fables - Vol.5
as Practical Pig / Tall Thin Mouseketeer (voice) (archive sound)

Everybody Loves Donald
as Goofy (voice) (archive sound) (uncredited)

Walt Disney's Fables - Vol.4
as Starter (The Tortoise and the Hare)

Everybody Loves Goofy
as Goofy (voice)

Walt Disney Treasures - The Complete Goofy
as Goofy (voice) (archive sound) (uncredited)

Everybody Loves Mickey
as Goofy; Pluto (voice) (archive sound) (uncredited)
The Adventures of Ichabod and Mr. Toad
1949