Trivia

To date, Cullen is the only actor to have guest starred as two different characters on Grey's Anatomy.

Studied at the American Musical and Dramatic Academy and Florida School of the Arts.

Used to support himself by busking for Broadway and London's West End theatregoers with his physical comedy routines.

Once roomed with actor Michael Emerson.

Played Sam Trammell's father on HBO's True Blood, but is actually only two years older than Sam. They also appeared together on Showtime's Going to California, playing friends.

Played 'George' in New Stage Theatre's 50th Anniversary Production of Edward Albee's "Who's Afraid of Virginia Woolf? (Jan 2016).