Butch Patrick

Milo

Mel Blanc

Officer Short Shrift / Dodecahedron / Demon of Insincerity (voice)

Daws Butler

Whether Man / Senses Taker / Terrible Trivium / Gelatinous Giant (voice)

Candy Candido

Awful DYNN (voice)

Hans Conried

King Azaz / The MathemaGician (voice)

June Foray

Ralph / Faintly Macabre / Princess of Pure Reason (voice)

Cliff Norton

akofonous A. Dischord / Tollbooth Speaker (voice)

Larry Thor

Tock The Watchdog (voice)

Les Tremayne

Humbug (voice)