Boo Arnold: Boo Arnold. Actor: Yellowstone. Earl "Boo" Arnold was raised in a small town in central Texas. His father gave him the nickname "Boo" early in life and it stuck, long before he ever thought he needed a stage name. Arnold graduated with a BA in Advertising and Marketing from Texas Tech University in 1989 where he played baseball and was a member of the Texas Epsilon Chapter of Phi Delta Theta. Arnold...
Known For: Yellowstone (Ranger Art Hansen), The Resident (Mr. Alderwood), Grey's Anatomy (Nate), Love & Death (Texas Ranger GW Burks)