NEW YORK, NY - MARCH 17: Actor Theo James enters the "Late Show With David Letterman" taping at the Ed Sullivan Theater on March 17, 2015 in New York City. (Photo by Ray Tamarra/WireImage)
NEW YORK, NY - MARCH 17: Actor Theo James enters the "Late Show With David Letterman" taping at the Ed Sullivan Theater on March 17, 2015 in New York City. (Photo by Ray Tamarra/WireImage)