As the guard takes Jim up the secret passageway to see Camille, the lamp he carries casts a shadow, which is impossible if it's the only light source as indicated. Also, as the guard goes up the stairs, the supposed light from the lamp snaps on and then snaps back on again a little further, indicating that off-screen spots are being used. The light from an actual lamp wouldn't go off and on and off again.
Trivia: With the majority of the episode set in or near Devil's island, France, this is one of the few episodes to take place outside of North America.
Gadgets: exploding knockout gas cigar and gas mask, cane with miniature grenade launcher
Disguise: Pierre Gaspar, French prison guard
Guard A: To the... to the Commandant? What would the Commandant want with vermin like you?
Jim: To join him for a cup of mint tea or watercress sandwich, I suppose. (the guards prepare to beat him) And to make my usual undercover report about the inefficiency of prison personnel.
Le Cochou: This poor Gaspar.
Mauvais: Yes. It's a pity in a way. On the other hand, I never really quite trusted him in spite of his record. I seem to detect some lingering shred of decency.
Artie: James, my boy, you'll never guess who we have approaching from outside this very minute.
Jim: Give me a clue, Artie. Animal, mineral, or vegetable?
Artie: Well, think of silk, satins, laces, uh, tassels. Blonde hair.
Jim: Well, that could be almost anyone.
Artie: How about a feather boa?
Couteau: I... but I don't get it. He's letting them take him to Devil's Island.
Artie: Yup. So far, so good.
Couteau: But why would he want to spend twenty years in Hell?
Artie: Probably just a whim.
Reed: Le Fou. he's been here too long. Well, in his own way he's managed to escape his environment. I almost admire him.
Jim: Don't envy him. You'll be doing the same thing very shortly.
Reed: What do you mean? It would take some kind of a miracle.
Jim: Nowadays miracles come in the oddest shape and sizes.
Gustave: All in all, this is one of the worst service records I've ever seen. It's a testimony to your treachery, cowardice, cruelty, and dishonesty. You should do well here.
Commercial breaks: Vincent Reed (ll), Jim at gunpoint (lr), Gustave Mauvais (ur), the Wanderer (ul)
Gilligan's Island makes another appearance in the fourth act, just as it did in "TNOT Murderous Spring." Another playful jab at CBS' monster hit will occur in the final season entry "TNOT Sabatini Death."
Writer Ken Kolb has a good time with his French while naming the characters in this installment. Mauvais means wrong, ill-fitting, or even villain. Le Fou translates as "the Fool." Le Cochon means "the Pig." And Couteau means "Knife."