Air Date: October 31, 1971
Written by: Michael Landon
Directed by: Michael Landon
Guest Stars: Richard Mulligan (Dr. Mark Sloan), Diane Shalet (Ruth Sloan), Bing Russell (Clem Foster)
The new doctor in Virginia City loses his mind when his wife deserts him after the death of their baby.
Trivia: This was Richard Mulligan’s second and last appearance in the series. He was a well-known television actor, best known for his roles on the NBC series Empty Nest (1988) and on the groundbreaking ABC sitcom Soap (1977). He won two Emmys for Outstanding Actor in a Comedy Series. In an interesting Bonanza tie, he was married to actress Joan Hackett (Margarita, from Season Six’s ‘Woman of Fire’) from 1966-1973.