Echo Kellum (born August 29, 1982) is an American actor and comedian. He portrays Curtis Holt/Mr. Terrific in a recurring starring role in the fourth season of Arrow and as a series regular in the fifth and sixth seasons. He also portrays Curtis Holt in a special guest starring role in the third season of DC's Legends of Tomorrow.
DC's Legends of Tomorrow
- "Return of the Mack" Curtis Holt (special guest star)
- "Crisis on Earth-X, Part 4" Curtis Holt/Mr. Terrific (special guest star)