Randall Jahnson is an American screenwriter and film producer. He was born on March 7, 1951, in Des Moines, Iowa, United States. Jahnson is best known for his work in the film industry, particularly as a screenwriter.Jahnson's notable credits include writing the screenplay for the 1989 film "The Mask," starring Jim Carrey. He also co-wrote the screenplay for the 1992 film "Dudes" and the 1998 film "The Doors," which is a biographical film about the rock band of the same name.

In addition to his work as a screenwriter, Jahnson has worked on other aspects of film production. He served as a producer for the 1997 film "The Doors: When You're Strange," a documentary about the band, and was an executive producer for the 2009 film "The Spirit," directed by Frank Miller.Randall Jahnson has had a varied career in the film industry, working on both independent and mainstream projects. While he may not have the same level of name recognition as some other screenwriters, his contributions to the films he has worked on have left an impact on the industry.