Jodi Benson Thumbelina (voice) Gino Conforti Jacquimo (voice) Barbara Cook Mother (voice) Will Ryan Hero / Reverend Rat (voice) June Foray Queen Tabitha (voice) Kenneth Mars King Colbert (voice) Gary Imhoff Prince Cornelius (voice) Joe Lynch Grundel (voice) Charo Mrs. Toad (voice) Danny Mann Mozo (voice) Loren Lester Gringo (voice) Gilbert Gottfried Berkeley Beetle (voice) Neil Ross Mr. Fox / Mr. Bear (voice) Carol Channing Ms. Fieldmouse (voice) John Hurt Mr. Mole (voice) Tony Jay Cow (voice) Randy Crenshaw Berkeley Beetle (singing voice) Stevie Vallance (voice)