SAG LifeRaft had a nice long conversation with the a while back that you should check out if you have the time.
Here’s his bio from SAG’s YouTube page:
Larry Moss began his career at New York’s famed cabaret Upstairs at the Downstairs and went on to appear on Broadway in numerous productions including Joe Layton’s Drat! The Cat!, Neil Simon’s God’s Favorite, directed by Michael Bennett, Burt Shevelove’s So Long 174th Street, Gerald Freedman’s The Robber Bridegroom, and Gene Saks’ I Love My Wife.
After teaching in New York at Juilliard and Circle in the Square, he moved to Los Angeles and founded The Larry Moss Studio. It was here that he directed and developed Pamela Gien’s The Syringa Tree, which had its world premiere at ACT in Seattle. The Syringa Tree opened in New York in September 2000 and won the Obie Award for Best Play of 2001, the Drama Desk Award, the Outer Circle Critics Award for Outstanding Solo Performance, a Drama League Honor and a nomination for the John Gassner Playwriting Award. The Syringa Tree has played to sold out houses and critical acclaim around the world, including London (The National Theater), Toronto (Can Stage), where it won the Dora Award for Best Actress and Best Play of 2005. Moss directed the TV version that was filmed by Trio Arts Network and most recently, Pamela and Larry, and their producer Matt Salinger, took The Syringa Tree on a profound journey of the heart, home, to South Africa to the Baxter Theater.