In this episode we learn that Dr. Kimble's father has recently died.
The Coliseum recommended by Harriet Ballinger for the meeting would be the Allen County War Memorial Coliseum built and so named in 1952 as a tribute to Korean War veterans. It hosted the Ft. Wayne Pistons until 1957 and for a few years afterward the Detroit Pistons. Basketball great Wilt Chamberlain broke the 3,000 single-season scoring record on March 10, 1961, at this Ft. Wayne, Indiana, Coliseum.
The character Leonard Taft, Dr. Kimble's brother-in-law, appears in the series for three different storylines and is each time played by a different actor. The first time occurs in Home Is the Hunted (1964) and James Sikking plays the role; the second time occurs in this episode, played by Lin McCarthy; the third time occurs in the series' two-part finale The Judgment: Part I (1967) and The Judgment: Part II (1967), played by Richard Anderson.
Six actors in the episode also starred in The Twlight Zone (1959) - James Daly, Joanne Linville, Barry Morse, Jacqueline Scott, Wright King and Frank Maxwell