McClain continued to pursue stage acting for a number of years in New York City and his work there includes appearing Off-Broadway in the original cast of Jonathan Tolins’ "The Last Sunday In June" at The Rattlestick Playwrights Theater and later in its transfer to The Century Center for the Performing Arts, as well as at Lincoln Center Theater and with the Lincoln Center Director’s Lab. Around the country, he has been seen on stage at the American Conservatory Theater, South Coast Repertory, Florida Stage, Paper Mill Playhouse, and the National Jewish Theatre, as well as at various theatres in Los Angeles.