Guy Williams (Officer Stanley) would reunite with Michael Landon on several episodes of Bonanza as his cousin Will.
Michael Landon later satirized his role in this film on his TV show, Highway to Heaven. In the 1987 Halloween episode, "I Was A Middle Aged Werewolf," written and directed by Landon, the angel Jonathan Smith turns himself into a werewolf to scare off some bullies. Smith and his friend, Mark Gordon (Victor French) watch the movie I Was a Teenage Werewolf on TV. Watching the werewolf, Mark tells Jonathan, "You know, this guy in the movie reminds me a lot of you. I mean, when he's a regular guy, not when he's got fuzz all over his face."
American Internation Pictures rushed out a number of films similar to this in hopes of capitalizing on the success of I Was A Teenage Werewolf. Among them - I Was a Teenage Frankenstein, How to Make a Monster, and Blood of Dracula.
American International Pictures released this on a double bill with Invasion of the Saucer Men with the tag line "We DARE You To See The Most Amazing Pictures of Our Time!"
One of the most successful films ever released by American Internation Pictures.
This was the film that came up with the popular title motif "I Was a *insert noun here*." Numerous films, songs, and books have paid homage to this film through their titles alone.