Alum Keegan Allen from ‘Pretty Little Liars’ will take the role of Jared Padalecki’s brother on Walker

After 15 years of playing brothers opposite Jensen Ackles on Supernatural, Jared Padalecki is getting a new sibling. Padalecki is set to star in the CW’s upcoming reboot of Walker, Texas Ranger. The series, titled Walker, has already been given…