Donna Lynne Champlin (born January 21, 1971) is an American actress, dancer and singer from New York City.

[2][6] Champlin took on the title role of Very Warm for May, her Broadway debut in James Joyce's The Dead, then By Jeeves, Hollywood Arms, Sweeney Todd, Billy Elliot the Musical, and The Dark at the Top of the Stairs, for which she won the 2007 Obie Award.

Other credits include: No, No Nanette, Very Good Eddie, First Lady Suite, Harold and Maude, My Life with Albertine, Bloomer Girl, and Jolson.

From 2015 to 2019, she starred in the role of Paula Proctor in The CW comedy-drama series Crazy Ex-Girlfriend.,[2] Hortense in Another Period and Barb in Netflix's Feel the Beat.

She spends her downtime writing, raising money for JDRF, BCEFA, The Actors Fund, and lives with her family in NYC.