Born in Detroit, Michigan, David began gathering fans when he appeared as Anton Briggs in Showtime's Dexter. He has gone on to make recurring guest appearances in shows such as: CSI, The West Wing, All of Us, The Ghost Whisperer, Grey's Anatomy, and Blue Bloods. He recently landed a starring role in the CW's Arrow which has had crossover episodes he has appeared in, such as The Flash, and Legends of Tomorrow.
Ramsey is an accomplished martial artist, with a black belt in Jeet Kune do. He has also studied boxing and Tae Kwon do, and trained in kickboxing under Benny "Jet" Urquidez.