Bonnie's boyfriend, motivated by jealousy and beach rivalries.
An American pathologist investigating a mysterious chlorophyll disease on Blood Island who becomes emotionally involved with Sheila.
Matt Farrell is a diver who is kidnapped by Neva Gordon and Steinman and taken to an island laboratory. Dr. Gordon intends to use him in an upcoming human-animal experiment, making Matt the central target whose fate draws Neva into rejecting her father's work and helping the captives escape.
A local hustler who organizes the pearl-hunting expedition after learning about the pearls' source. He collaborates with Dr. Vernon for scientific research, insists on another dive, survives the island escape, and claims the pearls at the end.
Peace Corps representative acting as interpreter and trying to stop sacrifices.
Johnny Bruder is Trudy Morton’s boyfriend. He initially dismisses her nightmares as imagination, but later becomes involved in the investigation after Carter Morton’s arrest and helps Trudy uncover the laboratory’s secret. He fights the monster and accidentally destroys Oliver Frank(enstein) while trying to protect them.
Surfer and close friend to Frankie.
A member of the beach-party circle who supports the surfers' social world.
Fred comes from a well-to-do family and impresses Louise's mother. He provokes Jim into a fight and challenges him to a dangerous drag race, with Rick's help. Fred and Rick later cause a fatal hit-and-run. At the final oval race, Fred tries to run Louise off the road because she intends to hand over evidence, but the police take him away.
W. P. Billingsley is a con man whom the women encounter while everyone is pursuing the stolen money. He attempts to take the money for himself, but the women overpower him. His actions place him in direct opposition to the women during the scramble for the cash.
A government agent who works with members of Ed Neilson's company to get Neilson out because of his sympathy for the Brown Hats, a group fighting for rights. Shaw has one of his men follow Duke Smith and hires a Corsican hit man to deal with him. Smith eventually shoots Shaw.
Musician and actor featured in a new rock musical number staged by the incoming studio management to replace Pete's horror films.
John Ashley has 46 screen credits in a career dating back to 1957. Their work spans 2 cinematic universes — most prominently Beach Party Collection with 5 titles. Signature works include The Twilight People, The Beast of the Yellow Night, Mad Doctor of Blood Island. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 2 universes
Related entry on Wikidata (Q1280682), public domain (CC0).