Keith David
Narrator (voice)
Acting
Kevin Conway
Mark Twain (voice)
Acting
Blythe Danner
Olivia "Livy" Langdon Clemens (voice)
Acting
Philip Bosco
(voice)
Acting
Tim Clark
(voice)
Acting
Carolyn McCormick
(voice)
Acting
Amy Madigan
(voice)
Acting
Cynthia Nixon
(voice)
Acting
John Boyer
Self (uncredited)
Acting
Jocelyn Chadwick
Self (uncredited)
Acting
Shelly Fisher Fishkin
Self (uncredited)
Acting
Dick Gregory
Self (uncredited)
Acting
Hal Holbrook
Self (uncredited)
Acting
Arthur Miller
Self (uncredited)
Writing
Chuck Jones
Self (uncredited)
Directing
Ron Powers
Self (uncredited)
Acting
Laura Skandera-Trombley
Self (uncredited)
Acting
William Styron
Self (uncredited)
Writing