Happy 45th Birthday, Kirk Cameron!
To celebrate the actor's special day, click through the gallery above to see the cast of Growing Pains then and now!
Still most known for his role on the 80s sitcom, the star continued acting and appeared on shows like How I Met Your Mother and The Bold and the Beautiful. Alan sadly died at age 69 on Dec. 13, 2016 after suffering a heart attack.
R/R; Getty Images