Lorne Greene, Michael Landon, and Dan Blocker lean in close for a cheerful, off-camera moment that speaks volumes about the genuine affection shared by the cast of Bonanza.

The show stars Lorne Greene, Pernell Roberts and Dan Blocker, but it was Landon who received more fan mail than any other cast member.

John Ireland played the part. No other original Bonanza stars appeared in the film, but Michael Landon Jr. starred and Lorne Greene's daughter Gillian had a small role as well.