Mark Twain: Beneath the Laughter (1979)
- Dan O'Herlihy - Mark Twain
- Kay Howell - Jean Clemens
- Peter Henry Schroeder - Sherburn
- Richard Moll - Stranger
- Gavan O'Herlihy - Young Clemens
- Sam Edwards - Bixby
- Maurice Kowalewski - Pap
- Les Podewell - Tom Nash
- Steve Stark - Huckleberry Finn
