Nick Havinga Michael Preece Nick Havinga Michael Preece Nick Havinga Michael Preece Corey Allen Michael Preece Corey Allen Michael Preece Corey Allen Michael Preece Linda Day Larry Hagman Linda Day Robert Becker Larry Hagman Robert Becker Roy Campanella, Jr. Michael Hoey Bruce Bilson Corey Allen Linda Day Larry Hagman Linda Gray Bruce Bilson Linda Day Bruce Bilson Jerry Jameson Nick Havinga Michael Preece 