Rob Lowe's Son, a Stanford Student, Is All Grown Up & Following in His Father's Footsteps on 'The Grinder'
Rob Lowe's Son is All Grown Up and Starring on His New Show!
'Love is Blind': Kwame on Why His Mom Doesn't Regret Missing His…
Jared Leto Spills on His New Album and Habit of Climbing Buildin…
Josh Duhamel on Expecting Baby No. 2, Says Son Axl Is Already Pi…
Taylor Swift and Travis Kelce Meet Up After She Cheers Him On at…
Jared Leto on Fans’ Emotional Reaction to His New 30 Seconds to …
‘Mean Girls’: Biggest Behind-the-Scenes Secrets
Watch Zendaya Support Boyfriend Tom Holland During Basketball Ga…
Watch Tia Mowry and Gabrielle Union Show Off Their Dance Moves o…
Alexandra Paul, Canadian Olympic Figure Skater, Dead at 31
’90 Day Fiancé’: David Hides His Nerves From Sheila as He Prepar…
'Claim to Fame' Winner Gabriel on Brother Nick Cannon's Reaction…
Kathy Griffin Documents Getting Lips Tattooed and Shares the Sho…
’90 Day Fiancé’: Sex Therapist Helps Michael and Angela Be More …
‘90 Day Fiancé’: Angela Disturbingly Bullies Liz and Big Ed Take…
Harry Styles Cries in Never-Before-Seen ‘X Factor’ Footage
Harry Styles' Best 'Love on Tour' Moments
Paris Jackson Defends Having Armpit Hair
Fans 'Honored' By Prince Harry Surprise at 'Heart of Invictus' S…
It's turning into a family affair on The Grinder! ET sat down with The Grinder star Rob Lowe, who opened up about his son John's guest star appearance on the new Fox comedy.
In The Grinder, Lowe plays an actor who played a lawyer on TV. When his long-running show gets canceled, Lowe's character moves back home to work with his family, a group of real-life litigators.
WATCH: Rob Lowe Reveals His Surprising Secret to Staying Young
The show takes its meta theme to a whole other level when Lowe's real-life son John, 19, shows up. Lowe told ET's Ashlan Cousteau he did everything he could to dissuade his two boys from following in his footsteps.
"Here I thought I avoided all the pitfalls of raising actors," Lowe told ET's Ashlan Cousteau. "[John] is at Stanford and we're like, 'We did it! We got him into a big school!' He was one of the leading interns in stem cell research. Now he's going to be wearing makeup for a living."
Lowe's elder son, Matthew, will also have a part in the show, though acting may not be his ultimate career path. The 21-year-old college student is currently preparing for law school.
Lowe's onscreen brother, Fred Savage, gushed about his work on the show so far.
WATCH: Rob Lowe Was on the Set of the Original 'Star Wars'
"He's hysterical on the show," Savage told ET. "He really is just committed to getting it right."
"He and I just instantly were like real brothers and kinetically we're in sync," Lowe said. "And I was a huge fan. The Wonder Years is one of my favorite shows."
Savage landed his breakout role on the classic TV show when he was just 11, but for the past decade it's been directing shows like Modern Family and 2 Broke Girls that's paid the bills.
"I wasn't planning on acting in a show," Savage admitted.
WATCH: 'The Grinder' Star Rob Lowe Responds to Fans Thinking He's on Grindr
Not only is he acting on the show, but he's also working for Lowe, as the Golden Globe-nominated actor is also an executive producer on the show.
The Grinder premieres Sept. 29 on Fox.