Guess Which Pretty Little Liars Star's Adorable Baby Pic This Is! (PHOTOS)

It's Keegan Allen (Toby Cavanaugh)! Who would have thought that such an innocent little guy would turn out to play a psycho stalker on Pretty Little Liars?

Did you guess it was Keegan, or are you totally shocked? Let us know in the reaction buttons below!
 

Pretty Little Liars Season 4 premieres on Tuesday, June 11, 2013 at 8 p.m. ET/PT on ABC Family.