Mystery of the Riverboat

Anthony Warde

Bruno Bloch

Francis McDonald

Batiste

Eddy Waller

Charles Langtry

Marion Martin

Celeste Eltree [Chs. 1-4, 7]

Eddie Quillan

Jug Jenks [Chs. 1-4, 7]

Alec Craig

Chief Engineer [Chs. 1-4, 7]