Bing Crosby as Professor Frederick Danvers

Jack Oakie as Barney Shirrel

Richard Arlen as Mondrake

Mary Carlisle as Barbara Shirrel

George Burns as George

Gracie Allen as Gracie

Mary Kornman as Amber Davis

Joe Sawyer as Tex Roust

Lona Andre as Ginger

Jimmy Conlin as Dr. Mandel

James Donlan as Marcus Lafflin

James Burke as Cromwell Dexter

Edward Nugent as Whistler

Lumsden Hare as College President

Grady Sutton as Timid Freshman

Robert Quirk as Bill

Jack Kennedy as Police Captain

Churchill Ross as Student with Glasses

Bruce Bennett as Student

Wade Boteler as Creamery Worker

Marion Byron as Student

Alfred P. James as Watchman

Frank Jenks as Orchestra Leader

Howard Jones as Football Coach

Anne Nagel as Student

Dave O'Brien as Student

Marjorie Reynolds as Student

Dorothy White as Student

Toby Wing as Student