The lead actor of this series, Darren McGavin, and two of his co-stars in this episode, Simon Oakland and Jack Grinnage, would go on to co-star six years later in the series Kolchak: The Night Stalker (1974), respectively in the roles of Carl Kolchak, Tony Vincenzo and Ron Updyke. Also working with McGavin in other episodes of this series were other significant "Night Stalker" actors from either the series or the two pilot TV movies The Night Stalker (1972) and The Night Strangler (1973) (both also featuring Oakland), such as Ruth McDevitt (who played Kolchak's Miss Emily), Claude Akins, Larry Linville, Julie Adams, Tom Skerritt, Stanley Adams, James Gregory, Michael Strong, Henry Jones, Pat Harrington Jr., John Doucette, Katherine Woodville, Steve Franken, Anne Whitfield, Len Lesser, John Marley, Pippa Scott, Bert Freed, Frank Marth, Myron Healey, Henry Beckman, Shelly Novack, Robert Karnes, Stuart Nisbet, Johnny Silver, Don 'Red' Barry, Jeanne Cooper, Diane Shalet, Read Morgan and Kathie Browne, who was in real life Mrs. Darren McGavin.