Bob Newhart Dick Loudon Actor Mary Frann Joanna Loudon Actor Steven Kampmann Kirk Devane Actor Jennifer Holmes Leslie Vanderkellen Actor Tom Poston George Utley Actor William Sanderson Larry Actor Estelle Omens Guest Star Tony Papenfuss First Darryl Actor William Lanteau Chester Wanamaker Guest Star Ryan MacDonald Guest Star Anne Gee Byrd Guest Star Brandon Maggart Guest Star Bill Wiley Guest Star John Voldstad Second Darryl Actor Richard Venture Guest Star Gary Allen Guest Star Frank Coppola Guest Star Kelly Jean Peters Guest Star Bill Quinn Guest Star Michael Steinfeld Guest Star Will Mackenzie Director Dick Martin Director John Rich Director Michael Zinberg Director Emily Marshall Writer Barton Dean Writer Sheldon Bull Writer John Steven Owen Writer Earl Pomerantz Writer Barry Kemp Writer Rich Reinhart Writer Bob Perlow Writer Paul Robinson Hunter Writer Stuart Silverman Writer Katherine Greene Writer Chip Keyes Writer Barbara Hall Writer Doug Keyes Writer Jeff Lewis Writer Gene Braunstein Writer