Robert Knepper the son of a veterinarian, was born in Fremont, Ohio and raised in Maumee (near Toledo). When he was growing up, his mother worked in the props department for the community theater, and because of her involvement, he became interested in acting. Knepper spent many years working in community theater and high school productions. Later, he studied drama at Northwestern University. He is a resident of Southern California.


Son of a veterinarian in real life, his character T-bag on Prison Break has a twisted encounter with a veterinarian in Season 2. Robert studied drama in Northwestern University (1977-1981). Mother: Pat Deck (died in 2003). Son-in-law of Peter V. Herald. Graduated from Maumee Highs School in Maumee, Ohio. Was the class of 1977. During filming of Hitman (2007), his Danish co-star Ulrich Thomsen jokingly confided in him that his last name, "knepper", is in fact a dirty word in Danish. He was awarded a 1982 Joseph Jefferson Award Citation for Actor in a Principal Role in a Play for "Class Enemy" at the Next Theatre Company in Chicago, Illinois.