
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.

Dog (voice)
1962
Self
1948
Munchkins (voice) (uncredited)
1939
Flamingo (voice) (uncredited)
1951
Sleepy / Grumpy / Dopey (hiccups) (voice) (uncredited)
1938
Maleficent’s Goon (voice) (uncredited)
1959

Aracuan Bird (voice) (uncredited)
1944
Ichabod Crane (screaming) (voice)
1949
Goofy (voice) (uncredited)
1947
Goofy (voice)
1942
Goofy (voice)
1947
Goofy (voice) (archive sound) (uncredited)
2002
Pluto
1948
Gabby (voice) (uncredited)
1939
Practical Pig (voice) (uncredited)
1934
Practical Pig (voice)
1933
(voice) (uncredited)
1936
Radio Hiccup (voice) (uncredited)
1936
Ichabod Crane (screaming) / Other Townspeople (voice)
1949
Grasshopper (voice)
1934
Starter (voice) (uncredited)
1935
Goofy (voice) (archive sound) (uncredited)
2004
Practical Pig (voice) (uncredited)
1939
Goofy (voice) (archive sound) (uncredited)
2003
Evil Hollow Tree (voice) (uncredited)
1932
Sheriff / Devil (voice)
1948
Santa's secretary (voice)
1932
Goofy (voice) (uncredited)
1946
Goofy (voice) (uncredited)
1942
Pluto / Gopher (voice) (uncredited)
1941
Goofy (voice) (uncredited)
1948
Goofy / Pluto (voice) (uncredited)
1935
Practical Pig (voice) (uncredited)
1936
Goofy (voice) (uncredited)
1935
Sergeant Pork, the Third Pig (voice)
1942
Goofy (voice) (uncredited)
1938
Pluto
1939
Oswald the Lucky Rabbit
1930
Goofy (voice) (uncredited)
1942