Michael Gross Michael Gross

Two of TV's most iconic father figures are about to cross paths.

Family Ties patriarch Michael Gross has booked a guest-starring role on Tim Allen's comedy Last Man Standing, TVGuide.com has learned exclusively.

Which shows should reunite?

Gross will play Mr. Hardin, a longtime no-nonsense math teacher who has seen standards drop over the years and struggles to the hold the line.

Aside from his role on the iconic '80s sitcom as Alex P. Keaton's hippie dad, Steven, Gross is also known for playing Burt Gummer in the Tremors franchise. He recently guest-starred on CSI, Curb Your Enthusiasm and Call Me Fitz.

Last Man Standing returns with new episodes on Friday, Feb. 28 at 8/7c on ABC. Are you excited to see Papa Keaton on the series?