The Rosenzweig Group has signed Mary Catherine Garrison for management in all areas.

Garrison is best known for her series regular role as Tricia on all three seasons of HBO’s Peabody Award-winning comedy Somebody Somewhere. The series also won the Critics Choice Award for Best Ensemble.

Garrison also is known for her recurring role as the often annoying relative Sophie Bruckheimer on Veep.

Garrison was most recently seen on the film side in Jay Duplass’ comedy The Baltimorons, co-written and starring Michael Strassner, which won an Audience Award at 2025’s SXSW.

Also a veteran stage actress, Garrison has appeared in six Broadway productions including Assassins, Lend Me a Tenor, Accent On Youth, Top Girls, Rabbit Hole and The Man Who Came To Dinner.

Garrison continues to be repped by Innovative Artists.