His most high profile role was probably as Coach Cotton in The Blind Side, and even though mainstream audiences may have enjoyed his performance, that role was nothing compared to the work he's done in smaller projects, especially with his own company, Ginny Mule Pictures, which he runs with another actor that is Not Very Famous, Walton Goggins.
In 2001, Ray McKinnon was recognized and awarded an Oscar for his short film, The Accountant, which he wrote, directed and starred in. Unfortunately with that being a short, it remains largely unseen by the average movie-goer, as well as some of his other must-see feature-length films like Randy and the Mob, Chrystal and That Evening Sun.
As an actor, the real talent of Ray McKinnon lies within his ability to stay true to his characters. Whether his role is large or small, his performance is always honest, making his good guys flawed and his bad ones human. Check out his work. He's the real deal.