Mr. Peabody and the Mermaid

William Powell

Arthur Peabody

Ann Blyth

La sirène

Irene Hervey

Polly Peabody

Andrea King

Cathy Livingston

Clinton Sundberg

Mike Fitzgerald

Art Smith

Dr. Harvey

Hugh French

Major Hadley

Beatrice Roberts

Mother

Lumsden Hare

Colonnel Mandrake

?

Mary Field

Wee Shop Clerk

?

Cynthia Corley

Nurse

?

Frederick Clarke

Basil

?

James Logan

Lieutenant

?

Mary Somerville

Lady Trebshaw

?

Dick Ryan

Bartender