Gimple was a writer on
NBC's
Life and
Fox TV's
Drive, and
ABC's
FlashForward. He co-wrote the script of
Ghost Rider: Spirit of Vengeance alongside Seth Hoffman and
David S. Goyer. In 2011, he joined
AMC's
The Walking Dead as a producer and writer for the
second season. He wrote "
Save the Last One", as well as the critically acclaimed "
Pretty Much Dead Already", and "
18 Miles Out" (with showrunner
Glen Mazzara). In January 2013, Gimple was named showrunner of
The Walking Dead, replacing Glen Mazzara. He served as showrunner from the
fourth season to the
eighth season. During his tenure, he also became an executive producer for
Fear the Walking Dead. Gimple left his role as showrunner in 2018 to become the chief content officer for
The Walking Dead television series franchise. Gimple has also worked on
Disney's
Pepper Ann and as a writer for
The Simpsons comics, including editing the Simpsons' Episode Guidebook "
The Simpsons Forever!: A Complete Guide to Our Favorite Family... Continued". He created the cartoon
Fillmore! and the comic book
Heroes Anonymous with
Bill Morrison. ==Personal life==