Ellen Travolta, playing Jimmy Baio's Mother, she would later portray his cousin Scott Baio's Mother on Happy Days (1974).
In one scene, Rocky and Norman discuss Fonzie's habit of kissing girls. Norman is played by Jimmy Baio the real-life cousin of Scott Baio, who played Fonzie's cousin on Happy Days (1974).
Julie McCoy's parents are played by two of ABC's most famous landlords: Betty Garrett of Laverne & Shirley, and Norman Fell of Three's Company.
Two of the actresses in this episode starred in Happy Days (1974) spin offs: Ellen Travolta played Chachi's mother, Louisa Delvecchio, in Joanie Loves Chachi (1982) and Betty Garrett played the roommates' landlady, Edna Babish, in Laverne & Shirley (1976).
Actresses Marla Adams and Melissa Gilbert appear in this 1978 episode as mother and daughter, respectively. Seventeen years earlier, Adams had appeared in Splendor in the Grass (1961). A remake of this film, Splendor in the Grass (1981), featured Gilbert in a starring role.