Happy 37th Birthday, Christine Lakin!
To celebrate the actress' big day, click through the gallery above to see what the Step by Step cast — including Patrick Duffy, Suzanne Somers and more! — is up to today.
Though Patrick, 67, is most known for playing Bobby Ewing on Dallas and Frank Lambert on Step by Step, the actor went on to do voice-over work on shows including Family Guy and Justice League. In 2012, he reprised his role as Bobby Ewing in TNT's reboot of the hit show Dallas, which went off the air in 2014.