Michael Ansara, Jim Backus, Fernando Lamas, Diana Lynn, William Shatner and Joanie Sommers all receive 'Special Guest Stars In Alphabetical Order' credits.
Michael Ansara and William Shatner starred together in the The Original Star Trek episode "Day Of The Dove"
Ansara tells Barry, "I'll outlive you by 20 years!" In real life, it was only four, though they were roughly the same age at death (91 and 90, respectively).
Frederick Barry (Robert) is the son of series star Gene Barry. He was two months short of 11 years old. This is his only on-screen role.
Closing credits: The characters and events depicted in this photoplay are fictional. Any similarity to actual persons, living or dead, is purely coincidental.