Robert Lyle Knepper (born July 8, 1959) is an American actor. He portrayed William Tockman/Clock King in the second season Arrow episode, "". He reprises the role in the first season The Flash episode, "".
Behind the scenes
- Robert Knepper, along with actors Wentworth Miller, Dominic Purcell, Peter Stormare, Chris Vance and Al Sapienza starred in the TV show Prison Break.
- at the