William Powell

William S. Whitley

Hedy Lamarr

Vicky Whitley

James Craig

Lloyd X. Hunter

Fay Bainter

Margaret Sibyll

Henry O'Neill

Professor Stowe

Spring Byington

Nancy Potter

Robert Sully

Strand

Morris Ankrum

Dr. Green

Bess Flowers

Audience member at violin concert

James Baskett

Porter (uncredited)

Phyllis Kennedy

Ethel

Franco Corsaro

Sebastian Melas

Connie Gilchrist

Beulah

Max Willenz

Dr. Gurtchakoff

Alex Melesh

Vladimir

Alexander Hall