updated 01/20/2011 AT 11:00 AM ET
•originally published 01/20/2011 AT 3:05 PM ET
Chances are, if you’re between the ages of 8 and 88, you’ve seen Jodie Sweetin on TV.
The actress grew up onscreen playing Stephanie Tanner on Full House, (which wrapped in 1995 but remains a rerun staple) and fans have followed both her troubles and triumphs ever since.
Far less is known about her beau, Morty Coyle, who popped the question to Sweetin – “a complete surprise,” she says – at her 29th birthday party on Jan. 18. PEOPLE recently got to know him, and the couple’s baby girl, Beatrix, at their home in L.A.
Who’s this guy who is making Sweetin so happy?