Banks attended Indiana University Bloomington where he was a classmate of 'Kevin Kline'. During that time, they participated together in a production of The Threepenny Opera.
Banks dropped out of Indiana University to join a touring company as a stage manager. He went to Australia with the company and stayed on working in theatre there.
His mother, Elena (Adams) Banks, worked for the CIA.
Has a daughter and twins.
Received Emmy nominations for playing the same character - Mike Ehrmantraut - on 2 different TV shows "Better Call Saul" (2015) and "Breaking Bad" (2008).