Blue was part of the one-night celebrity staging of Howard Ashman's unproduced musical Dreamstuff.
The musical was re-imagined by Howard's partners Marsha Malamet and Dennis Green and performed one night only at Los Angeles' Hayworth Theatre as part of the Bruno Kirby celebrity reading series, directed by his Ugly Betty co-star Michael Urie.
His first starring role came in the film Winter Follies, directed by Darren Lynn Bousman who also helmed Saw II, Saw III, and Saw IV.
David was one of the eight selected for the Apprentice program at the Actor's Theatre of Louisville, where he worked with many acclaimed artists, such as Jennifer Hubbard and Sullivan Canaday White.
He was also later granted a scholarship to the British Academy of Dramatic Arts but his burgeoning career prevented him from accepting straight away.