Early life

Moennig was born in Philadelphia, Pennsylvania, to Broadway dancer Mary Zahn and William H. Moennig III. Her father's maternal half sister is actress Blythe Danner.

Career

Moennig moved to New York City at the age of 18 to study at the American Academy of Dramatic Arts.

In 1999, she had the central role in the Our Lady Peace video "Is Anybody Home?". She also took a role in a Fleet Bank commercial, and appeared in a Red Cross Campaign benefitting victims of Hurricane Katrina. Moennig was a presenter at the 17th annual GLAAD awards and appeared at the 10th annual Ribbon of Hope Celebration.

Moennig's first major role was in the television series Young Americans, playing Jake Pratt. She has played multiple lesbian roles: Shane McCutcheon in The L Word; Rosie's (Drew Barrymore) partner Jilly in Everybody's Fine; Candace, the lesbian lover of Sophia Myles' character, in Art School Confidential; and Lena, a press agent who works for Liev Schreiber's character, in Ray Donovan. She has also pursued transgender roles, auditioning for the part of Brandon Teena in Boys Don't Cry, and playing Cheryl Avery, a young transgender woman in the Law & Order: Special Victims Unit episode "Fallacy".

In April 2006, Moennig made her Off Broadway debut as "American Girl", opposite Lee Pace, in Guardians, by Peter Morris. The story is loosely based on that of Lynndie England.

In 2007, the Hetrick-Martin Institute (HMI) produced the documentary My Address: A Look At Gay Youth Homelessness in cooperation with Moennig. Directed by Gigi Nicolas, the documentary explored the experiences of homeless gay youth and the work of the HMI.

In 2009, Moennig joined the cast of the TV series Three Rivers. On November 30, 2009, it was announced that CBS had pulled Three Rivers from the schedule, with no plans to return it. Moennig appeared in an episode of This Just Out in 2010.

In 2013, tomboy clothing range Wildfang launched in America. Moennig was an ambassador for the brand, appearing in the launch video and designing a limited edition pair of boots.

Also in 2013, Moennig joined the cast of the new Showtime drama Ray Donovan, starring as Lena, Ray Donovan's assistant.

Filmography

Film

Year	Title	Role	Notes
2000	Ice People, TheThe Ice People	Wanja Kasczinsky	Short film
2001	Slo-Mo	Raven	Short film
2001	Love the Hard Way	Debbie
2001	Shipping News, TheThe Shipping News	Grace Moosup
2004	Invitation to a Suicide	Eva
2006	Art School Confidential	Candace
2009	Everybody's Fine	Jilly
2010	Lez Chat	Athletic Woman	Short film
2011	Lincoln Lawyer, TheThe Lincoln Lawyer	Gloria
2012	Gone	Erica Lonsdale
2013	Default	Juliana	Post-production

Television

Year	Title	Role	Notes
2000	Young Americans	Jacqueline "Jake" Pratt	Main role (8 episodes)
2001	Law & Order	Melissa Cobin	Episode: "For Love or Money" (S12E03)
2003	Law & Order: Special Victims Unit	Cheryl Avery	Episode: "Fallacy" (S4E21)
2004-2009	L Word, TheThe L Word	Shane McCutcheon	Main role (70 episodes)
2008	CSI: Miami	Mary Landis	Episode: "Rock and a Hard Place" (S6E19)
2009-2010	Three Rivers	Dr. Miranda Foster	Main role (13 episodes)
2010	Dexter	Michael Angelo	Episode: "First Blood" S5E05
2013-present	Ray Donovan	Lena	Main role (29 episodes)

Theatre

Title	Role
Guardians	American Girl
As You Like It	Shepherdess
Theory of Total Blame, TheThe Theory of Total Blame	Cheryl Avery
Comedy of Art	Isabella
Morning in the City Nolan	Karen
Love Letters	Dr. Melissa
Shadow Box, TheThe Shadow Box	Felicity
Murder of Lidice, TheThe Murder of Lidice	Byetacc
Two Gentlemen of Verona, TheThe Two Gentlemen of Verona	Lucetta
Late Show, AA Late Show	Pat
Burn This	Anna
Alone at the Beach	Chris
Lovers	Maggie
Anna K	Anna

Charities

Katherine Moennig supports the following charitable cause: Teens.

[ Source: Wikipedia ]