Kathryn Beaumont Alice (voice) Ed Wynn Mad Hatter (voice) Richard Haydn Caterpillar (voice) Sterling Holloway Cheshire Cat (voice) Jerry Colonna March Hare (voice) Verna Felton Queen of Hearts (voice) J. Pat O'Malley Walrus / Carpenter / Dee / Dum (voice) Bill Thompson White Rabbit / Dodo (voice) Heather Angel Alice's Sister (voice) Joseph Kearns Doorknob (voice) Queenie Leonard Bird in the Tree (voice) Dink Trout King of Hearts (voice) Doris Lloyd The Rose (voice) Thurl Ravenscroft Card Painter (voice) Lucille Bliss Sunflower / Tulip (voice) (uncredited) Pinto Colvig Flamingo (voice) (uncredited) Clarence Nash Dinah (voice) (uncredited) Marni Nixon Singing Flowers (voice) (uncredited)