Brandon concludes that Tony's troubled history makes him an excellent subject for his experiments with a scopolamine serum he has developed that regresses personalities to their primitive instincts.

Donovan and Police Chief Baker review photographs of the victim and notice that the fatal wounds look like fang marks, but there are no wild animals in the area.

Following the transformation, a ringing telephone triggers Tony's instincts, and he kills Brandon and Wagner, breaking open the camera in the process and ruining the film.

When Tony dies, his normal features return, leaving Donovan to speculate on Brandon's involvement and on the mistake of people interfering in the realms of God.

[3] Dawn Richard, who plays a teenaged gymnast in the film, was a 21-year-old Playboy centerfold model at the time, appearing in the magazine's May 1957 issue, which hit the newsstands a month ahead of the movie.

Pepe, the Romanian janitor at the police station, was played by the Russian-born Vladimir Sokoloff, a character actor who appeared as ethnic types in over 100 productions, his most famous being the old Mexican man in The Magnificent Seven three years later.

Tony Marshall is the only other male actor to receive billing in the trailer for I Was a Teenage Werewolf, in addition to Landon and Bissell; however, he made only one other motion picture, the obscure Rockabilly Baby, for Twentieth Century-Fox, which was released in October of the same year.

"[6] Harrison's Reports was fairly positive, writing, "This horror type program melodrama should give pretty good satisfaction in theatres where such films are acceptable.

"[7] The Monthly Film Bulletin in the UK was negative, declaring, "A piece of old-fashioned and second-rate horror, the transformations are very badly done, the scientific background is shaky in the extreme and the monster looks like anything but the usual idea of a werewolf.

[3] More or less a remake, and with the hero and villain roles now both played by females, Blood of Dracula, with a story and screenplay credit by I Was a Teenage Werewolf writer Ralph Thornton (a pseudonym for AIP producer Herman Cohen and Aben Kandel), features many other similarities to I Was a Teenage Werewolf:[10] for instance, both have (among other things) a teenager with social behavior problems, an adult mad scientist who is searching for the perfect guinea pig under the guise of helping troubled youth, an observer who can tell the killings are the work of a monster, a disbelieving police chief afraid of the press, a song written by Jerry Blaine and Paul Dunlap accompanied by a choreographed "ad-lib" dance number, hypnosis as a scientific medical treatment, drug injections, specific references to Carpathia, hairy transformation scenes and even some of the same dialogue.

Although today the film is largely regarded as a source of "camp" humor, and while at the time of release the idea of an adult human turning into a beast was not new, a teenager doing so in a movie was considered avant-garde—and even shocking—in 1957.

[citation needed] Featuring Disney favorite Tommy Kirk as the hapless teenager, and A-lister Fred MacMurray as the answer to B-lister Whit Bissell, it was released in 1959 under the title The Shaggy Dog.

[13] Scenes from I Was a Teenage Werewolf were included in the 1973 "fifties nostalgia" concert film Let the Good Times Roll, featuring Madison Square Garden performances from Chuck Berry and Bill Haley and the Comets.

[15] The July 16, 1982 episode of SCTV ("Battle of the PBS Stars") featured a comedy skit of the movie called "I Was a Teenage Communist", mixing horror with the politics of red-baiting during the 1950s.

(Organization Without a Cool Acronym) replacing him with a robot controlled by Phineas & Ferb's pet platypus, Perry, also known as Agent P. An episode of The Owl House in 2020 is titled "I Was a Teenage Abomination".

Anarchist vegan punk band Propagandhi wrote a song titled "I Was a Pre-Teen McCarthyist" and is featured on the 1996 album Less Talk, More Rock.

Rock band Queens of the Stone Age have a song on their 1998 self-titled debut album with the title, "I Was a Teenage Hand Model".

Brazilian rock band Legião Urbana has a song called "Eu Era Um Lobisomem Juvenil", title of the movie in Portuguese.

In 2015, the anthology Killer Bees from Outer Space (KnightWatch Press) featured a story, "I Was a Teenage Mummy Girl," by Amelia Mangan.