The medical sitcom Scrubs is on the verge of a comeback, but one side character’s return may be in jeopardy due to the actor’s new career path. Johnny Kastl, who played Doug Murphy in 49 episodes, has retired from acting to become a lawyer and appears unlikely to rejoin the show. Despite this, showrunner Bill Lawrence is close to completing deals for more Scrubs episodes, with most of the main cast set to return. However, the revival may struggle without Kastl’s character, who was a fan favorite known for his humorous antics as a less skilled doctor. While Kastl’s absence would not be a major issue, given that his character appeared in fewer seasons of the show’s final run, the return of more prominent characters like Zach Braff’s JD Dorian will be crucial to making Scrubs’ comeback successful.
Source: https://screenrant.com/scrubs-doug-murphy-johnny-kastl-retired-acting-return-revival-factoid