Buddy Lewis (Man at Airport) later appears as a different character in season five's Angel on a Roll (1981).
Tracy Brooks Swope (Sally Miles) had previously appeared in I Love You, Rosey Malone (1977), where she played Starsky's love interest. Paul Michael Glaser (Starsky) went on to marry twice, each time to a woman who resembled Swope - one in appearance (Elizabeth Glaser), the other in name (Tracy Barone).