Dexter Riley

A.J. Arno

Dean Higgins

Professor Quigley

Dean Collingsgood

Chillie Walsh

Annie

Henry

Pete

Schuyler

Bradley

Angelo

Moderator

Sigmund Van Dyke

Extra

Collingsgood Associate (uncredited)

Student (uncredited)

Winifred - Dean's Secretary (uncredited)

Mr. Walski (uncredited)

Police Turnkey (uncredited)

Moderator (uncredited)

College of Knowledge Attendee (uncredited)

Dietes - College Regent (uncredited)

Police Desk Sergeant (uncredited)

Police Detective at Raid (uncredited)

Police Detective (uncredited)

Crew Member (uncredited)

Scientist (uncredited)

Racetrack Patron (uncredited)

(uncredited)

Leonard - College Regent (uncredited)

College of Knowledge Sponsor (uncredited)

Police Officer (uncredited)

Detective in Gambling Raid (uncredited)

Casino Patron (uncredited)

Croupier (uncredited)

Man Seated in Control Room (uncredited)

Party Guest (uncredited)

TV Reporter (uncredited)

Dr. Rufus Schmidt (uncredited)

Waiter at Track (uncredited)