His career has included Musical Director for the Music Theater of Wichita, E. Carolina Summer Theater and the West Virginia Public Theater having done productions of The King and I, Sugar Babies, Annie Get Your Gun, Beehive, Bye Bye Birdie, Cinderella, Shenandoah, 42nd Street, Singing in the Rain, Always Patsy Cline, Showboat, Joseph and the Amazing Technicolor Dream Coat, Seven Brides for Seven Brothers, Oklahoma, Honky Tonk Angels, Gypsy, and Phantom. Thomas has also created the onstage role of Fats Waller in productions of Ain't Misbehavin'. He has also enjoyed being the Musical Director for productions of Closer than Ever, Baby, Carousel, The Sound of Music, Jesus Christ Superstar, Charlie and Algernon, Hair, Kiss Me Kate, The Mystery of Edwin Drood, A Little Night Music and The Baker's Wife. Thomas was given the distinction of Best Musical Direction in 1996 for the do-wop musical Avenue X at the City Theater. At the City Theater he as also done Valley Song and the onstage role of Manny in Master Class.

He has been the Choral Director for the Canton Symphony and the Assistant Conductor of the Mendelssohn Choir of Pittsburgh having conducted numerous works from the standard choral/orchestral repertoire. He is the founder and Artistic Director of the Pittsburgh Chorale-East, the Neighborhood Opera Company, a new African American Opera Company and the Pinnacle Players, a musical theater company for performers over age thirty. Mr. Douglas is on the Drama and Music school faculty of Carnegie Mellon University and has served on the Choral/Opera Panel of the State Council on the Arts. In addition to many other guest conducting appearances including the Dallas Symphony, he has enjoyed singing with the Pittsburgh Symphony, the Canton Symphony, the Westmoreland Symphony and the River City Brass Band. He is the proud dad to Justin and Courtney.