Both Mark and Kelly shared a cute vid on their Instagram Stories of their son in full costume for his stint on the show.
Twenty-one-year-old Michael will be playing the younger version of his dad's villainous character, Hiram Lodge on a flashback episode on the popular CW show.
The clip showed Michael popping out from his trailer. Mark can be heard offscreen happily telling son, “It’s bring your parents to work day!" Michael, confused, simply replied, "Great." Kelly was nearby laughing.
The news of his casting came earlier this month in which his dad posted a sweet message congratulating his oldest boy.
"Bucket list moment for Mom and Dad. Congrats to my son Michael on being cast as the younger (and much better and handsomer) Hiram.. We are so proud. Love you MJC #riverdale #bucketlist," the 47-year-old actor wrote on IG.
Are you excited to see Michael work with his dad on the show? Sound off in the comments below!