William Fichtner added as series regular for the fourth season of the Mom TV show on CBS. (Featureflash Photo Agency/ Shutterstock.com)

William Fichtner has been promoted as a series regular for the upcoming fourth season of the Mom TV show on CBS. He plays Bonnie’s (Allison Janney) boyfriend Adam, a former stuntman who now uses a wheelchair. Fichtner played Carl Hickman during the first two seasons of the Crossing Lines TV series, which was cancelled after one season on NBC. Netflix later picked up the show for a second and third season.

TV Line‘s Charlie Mason reported the news in an exclusive. Mom season four premieres Thursday, October 27, 2016 at 9:00pm ET/PT. The series stars Anna Faris and Allison Janney.

Fichtner was last season in Mom, episode 3.19, “A Catheter and a Dipsy-Doodle,” when Adam headed off to Croatia to serve as a stunt coordinator on a film.

What do you think? Are you a fan of the Mom TV series? How do you feel about him being added to the fourth season cast?