James Arness Zebulon Macahan Actor Fionnula Flanagan Molly Culhane Actor Bruce Boxleitner Luke Macahan Actor Kathryn Holcomb Laura Macahan Actor William Kirby Cullen Josh Macahan Actor Vicki Schreck Jessie Macahan Actor Richard Basehart Guest Star Ramon Bieri Guest Star Lloyd Bridges Guest Star Horst Bucholz Guest Star Elyssa Davalos Guest Star Mel Ferrer Guest Star Brian Keith Guest Star Christopher Lee Guest Star Tim Matheson Guest Star Cameron Mitchell Guest Star Ricardo Montalban Guest Star Trisha Noble Guest Star John Reilly Guest Star Morgan Woodward Guest Star John Mantley Executive Producer John G. Stephens Producer