Main •
Rob Lowe as Dean Sanderson Jr., an actor who played the role of attorney Mitch Grinder on the long-running fictional legal drama series
The Grinder •
Fred Savage as Stewart Sanderson, Dean's younger brother who is a real life attorney
Recurring •
Steve Little as Todd, an attorney of questionable skill who works at Jefferson, Sanderson, & Holt, and is also a huge fan of Dean's •
John Owen Lowe as Joel Zadack, Lizzie's boyfriend, they eventually break up after becoming more comfortable hanging out with her family •
Jason Alexander as Cliff Bemis, the creator and head writer for
The Grinder TV show, whose constant disagreements with Dean led to Dean leaving the show •
Kumail Nanjiani as Leonard, a prosecuting attorney who gets humiliated by Dean in the courtroom •
Timothy Olyphant as a fictionalized version of himself who becomes Dean's nemesis; he assumes the starring role of Rake Grinder on
The Grinder: New Orleans after convincing Dean to quit the show, and then begins dating Claire •
Maya Rudolph as Jillian, Stewart and Dean's therapist, who later becomes Dean's girlfriend, much to Stewart's chagrin •
Matt Hobby as Pat Landy •
Kenny Lucas as Cory Manler, a former Sanderson & Yao client who sues the firm for malpractice •
Keith Lucas as Rory Manler, twin brother of Cory Manler ==Episodes==