From left: Scott Baio and Garry Marshall

(The Hollywood Reporter) – Happy Days fans are in for a treat: Legendary TV creator/actor/producer Garry Marshall guest stars in Scott Baio’s new Nick at 
Nite series, See Dad Run, on Sunday night.

In the episode, airing at 8 p.m., sitcom star-turned-stay-at-home father David’s
(Baio) TV dad, Bernie (Marshall) visits, but the reunion sours when he runs off
and leaves his new baby. David must convince Bernie that being a real dad will
be his best role. 

Baio and Marshall say they’ve kept in touch over the years since Happy Days
ended its 10-year run in 1984. And when the writers were working on this episode,
in the need arose to cast Baio’s TV dad, the actor says Marshall was one of the
names brought up.