![Mystery of the Riverboat](https://image.tmdb.org/t/p/original//ahhEUptoVROVusJmkwVcpbyo8pw.jpg)
![Mystery of the Riverboat](https://image.tmdb.org/t/p/w200//nv0olHqCLn8B2JvODwGBhTEhlqG.jpg)
Mystery of the Riverboat
3 hours 38 minutes1944-10-24
6.0
Watch Trailer
A movie serial in 13 chapters: Some swampland becomes valuable, and various factions squabble over ownership of it.
Cast
![Robert Lowery](https://image.tmdb.org/t/p/w200//8wS1z1Di0lHQBHu6zOA75SUtJGN.jpg)
Robert Lowery
Steve Langtry
![Marjorie Clements](https://image.tmdb.org/t/p/w200//rRBpCnEmHkUKQFP4mKt5PRZtVWV.jpg)
Marjorie Clements
Jenny Perrin
![Lyle Talbot](https://image.tmdb.org/t/p/w200//a4rVESEvJg6VRd23M6FLRjlfsta.jpg)
Lyle Talbot
Rudolph Toller
![Arthur Hohl](https://image.tmdb.org/t/p/w200//bkLPbxdjy5aRL8KkG0HY6H5sFo5.jpg)
Arthur Hohl
Clayton
![Oscar O'Shea](https://image.tmdb.org/t/p/w200//shWnx3maJa24MT3EmNnXhOSAKXs.jpg)
Oscar O'Shea
Capt. Ethan Perrin
![Joe Devlin](/_next/static/media/notFound.aecd17f8.png)
Joe Devlin
Louis Schaber
![Anthony Warde](https://image.tmdb.org/t/p/w200//vwJd5IbKcEnDXr88E7XTRPs9gZ7.jpg)
Anthony Warde
Bruno Bloch
![Francis McDonald](https://image.tmdb.org/t/p/w200//5sIApbjJvZx0KvEDEk7BWKUuAeg.jpg)
Francis McDonald
Batiste
![Eddy Waller](https://image.tmdb.org/t/p/w200//sSdKkGEXVeQno5OTcfdy1CBR80J.jpg)
Eddy Waller
Charles Langtry
![Marion Martin](https://image.tmdb.org/t/p/w200//3WTkubutgHhO3lJXlW5rqYZGr01.jpg)
Marion Martin
Celeste Eltree [Chs. 1-4, 7]
![Eddie Quillan](https://image.tmdb.org/t/p/w200//p49Q3UZigqHlmrQYWa2RTNh6CGv.jpg)
Eddie Quillan
Jug Jenks [Chs. 1-4, 7]
![Alec Craig](https://image.tmdb.org/t/p/w200//sLB2tMxIiCo6q1kQ9m7rWMWKNs4.jpg)
Alec Craig
Chief Engineer [Chs. 1-4, 7]
![Ian Wolfe](https://image.tmdb.org/t/p/w200//8Eum5GDti8Zh9ZyYSvWaoIHt8Wr.jpg)
Ian Wolfe
Hermann Einreich [Chs. 1-2]
![Dick Curtis](https://image.tmdb.org/t/p/w200//yLb6fRcbl1T58a0H7htYBQWlJI3.jpg)
Dick Curtis
Craig Cassard [Ch. 1]
![Byron Foulger](https://image.tmdb.org/t/p/w200//8j1Mn3alrcZyfe742LCfjCglQ3L.jpg)
Byron Foulger
Dr. Hartman [Ch. 1]
![Earle Hodgins](https://image.tmdb.org/t/p/w200//tdoaxQUuE9Ko5PtQsrqDXdFIJpU.jpg)
Earle Hodgins
Jean Duval [Ch. 5]
![Cy Kendall](https://image.tmdb.org/t/p/w200//3UBuHub7H5iPv2W3BriYOBGGvAG.jpg)
Cy Kendall
Police Chief F. E. Dumont [Chs. 6-8, 11]
![Ralph Sanford](https://image.tmdb.org/t/p/w200//aHEOl10vc0Qy0xzG5HJ46pSkoQW.jpg)
Ralph Sanford
Sawyer, the garage owner [Chs. 5, 10]
![Jimmie Dodd](https://image.tmdb.org/t/p/w200//mJWpSrN518HaKaTSlaXyZPT0Mdl.jpg)