Frederick is best known for his role as as Marshal Mann on 5 seasons of USA’s In Plain Sight. He also starred opposite Sharon Stone in HBO’s Mosaic (directed by Steven Soderbergh), and has had principle rolls in about 50 other film and TV projects.

Weller has had major roles in 8 Broadway plays and 12 Off-Broadway Plays, as well as starring in “a View from the Bridge” at the Mark Taper Forum in L.A. He has won a Drama desk, an Obie, & has been nominated for 2 other Drama Desks & 2 Lucille Lortels.