When discussing his difficulties with parenting, George says, "And this Mister Spock book is no help!" Matt replies, "It's Doctor Spock. Mister Spock is one of you guys." Gary Graham, who played Matt, later played the Vulcan Ambassador Soval in Star Trek: Enterprise (2001).
At only four, this episode features fewer regular cast members than any other: Gary Graham (Matt Sikes), Eric Pierpoint (George Francisco), Michele Scarabelli (Susan Francisco) and Sean Six (Buck Francisco).