The Secret of the Submarine 1915

Synopsis:

An American adventure film serial comprised of fifteen episodes of two reels (24 min) each. All chapters are presumed lost.

Directed by: George L. Sargent
Runtime: 360 minutes
Cast:
Juanita Hansen
Juanita Hansen
Cleo Burke 
Tom Chatterton
Tom Chatterton
Lt. Jarvis Hope 
Hylda Hollis
Hylda Hollis
Olga Ivanoff 
Lamar Johnstone
Lamar Johnstone
Gerald Morton 
George Clancey
George Clancey
Hook Barnacle 
William Tedmarsh
William Tedmarsh
Tatsuma