Joseph "Rouletabille"

Mathilde Stangerson

Robert Darzac

Lebel

Mathieu

Criminal Bellmayer alias Larsan

Maid

Nurse from the hospital

Girl at the party at Rouletabille's

Investigating judge

Acting

Brigadier

Tramp

Mrs. Baptiste

Max

Madman

Acting

Acting

Acting

Acting

Croizy

Father Jacques

Mechanic (uncredited)

Madman who thinks he's the president (uncredited)

(uncredited)

Former boxer interned (uncredited)

Man at Rouletabille's party (uncredited)

Directing

Sound

Camera

Art

Editing

Production