Reg E. Cathey

Reginald Eurias Cathey (August 18, 1958 – February 9, 2018) was an American character actor. He was best known for various roles on the children's math show Square One Television, as well as Norman Wilson in The Wire, Martin Querns in Oz, and Freddy Hayes in House of Cards. The latter garnered him three consecutive Emmy Award nominations for Outstanding Guest Actor in a Drama Series, including a win in 2015.