City of Fire
- The puppet that played the Helijet pilot also appeared as Lieutenant Burroughs in Operation Crash-Dive, as the Director of Photography in Martian Invasion, and as Asher in Sun Probe. In Vault Of Death, it played Executive Carter. In The Perils of Penelope, it made a cameo appearance as a waiter on board the Anderbad Express. Two pictures of the puppet can be seen hanging on the wall in Maxie's office, in the episode The Cham-Cham.