Curly Howard

Curly

Larry Fine

Larry

Moe Howard

Moe

Vernon Dent

Prof. Quackenbush

Barbara Slater

Lulu Quackenbush

Emil Sitka

Sapington (uncredited)

Theodore Lorch

Prof. Sedletz (as Ted Lorch)

Symona Boniface

Mrs. Smythe-Smythe (uncredited)

Jules White