
Katherine Sian Moennig (born December 29, 1977) is an American actress best known for her role as Shane McCutcheon on The L Word, as well as Jake Pratt on Young Americans. In 2009, she starred as Dr. Miranda Foster on CBS Three Rivers. Moennig was born in Philadelphia, Pennsylvania, to Broadway dancer Mary Zahn and violin maker William H. Moennig III. Moennig is of German, Scottish, and Irish ancestry.
Moennig moved to New York City at the age of 18 to study at the American Academy of Dramatic Arts. Moennig has played multiple lesbian roles in The L Word, Everybody's Fine, Art School Confidential. 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 Law and Order. In 2007, the documentary My Address: A Look At Gay Youth Homelessness in New York was launched with Moennig in cooperation with the Hetrick-Martin Institute (HMI).

No Good Deed
Gwen · (8 episodes)
2024

Squealer
Earline
2023

Ray Donovan: The Movie
Lena
2022
Plano B
Self
2020

Bottomless Brunch at Colman's
Self · (1 episode)
2020

The L Word: Generation Q
Shane McCutcheon · (28 episodes)
2019

grown-ish
Professor Hewson · (7 episodes)
2018

grown-ish
Professor Hewson (voice) · (1 episode)
2018

Lane 1974
Hallelujah
2017

My Dead Boyfriend
Zoe
2016

Default
Juliana
2014

Ray Donovan
Lena · (72 episodes)
2013

Gone
Erica Lonsdale
2012

The Lincoln Lawyer
Gloria
2011
Lez Chat
Athletic Woman
2010

Everybody's Fine
Jilly
2009

Three Rivers
Dr. Miranda Foster · (13 episodes)
2009

Dexter
(1 episode)
2006

Art School Confidential
Candace
2006

Invitation to a Suicide
Eva
2005

Best Week Ever
(1 episode)
2004

The L Word
Shane McCutcheon · (71 episodes)
2004

CSI: Miami
(1 episode)
2002

Love the Hard Way
Debbie
2002

The Shipping News
Grace Moosup
2001
Perfect

Young Americans
Jake Pratt · (8 episodes)
2000

Law & Order: Special Victims Unit
Cheryl Avery · (1 episode)
1999
The L Word: New York
Shane McCutcheon · (1 episode)

Law & Order
Melissa Cobin · (1 episode)
1990