EW has confirmed that Tyler Blackburn will return as a series regular for Pretty Little Liars‘ fifth season. Blackburn will reprise his role as Caleb Rivers, Hanna’s ex-boyfriend who left town to investigate his family’s history (and so much more) in Ravenswood. But with Ravenswood‘s cancellation, it sounds like Blackburn is ready to get back on the “Who is ‘A’?” bandwagon.