He is best known for his role as Cato on the short-lived WGN America drama series Underground.

[1] Miller attended high school in Dayton Beach, where he worked as a lifeguard.

In 2008, Miller earned a Master of Fine Arts degree from Penn State University.

In December 2016, Miller was nominated for the 48th NAACP Image Award for Outstanding Supporting Actor in a Motion Picture.

[1] On June 26, 2009, he married fellow actor DeWanda Wise after three months of dating.