- Kurt Ida
- Huckleberry Finn
- Dan Monahan
- Tom Sawyer
- Brock Peters
- Jim
- Forrest Tucker
- Duke
- Larry Storch
- Dauphin
- Lurene Tuttle
- Miss Watson
- Jack Kruschen
- Judge Thatcher
- Elvia Allman
- Aunt Sally
- James Griffith
- Uncle Silas
- Helen Kleeb
- Widow Douglas
- Michele Marsh
- Mrs. Loftus
- Prentiss Rowe
- Constable Burns
- Mike Mazurki
- Logan
- Cliff Osmond
- Pap
- John Bishop
- (as John G. Bishop)
- Henry Kendrick
- (as Henry Max Kendrick)
- Theophil Ross
- Jackson Island Man
