
Mandy
Siegfried

Mandy is a New York City based actress who was born and raised in Pittsburgh, so naturally she grew up loving The Steelers and Primanti Bros. sandwiches.
She has a diverse career in television, theater, and film, and has premiered roles in plays by Adam Rapp, Theresa Rebeck, Jessica Goldberg, Itamar Moses, Keith Reddin, and Winter Miller.
Mandy is often recognized by GREY’S ANATOMY fans as Molly, one of Meredith Grey’s half sisters. Other TV and film credits include: CLAWS, SUCCESSION, ELEMENTARY, THE GOOD WIFE, THE FOLLOWING, PERSON OF INTEREST, HUNG, BONES, AND STUDIO 60, and the independent films THAT’S WHAT SHE SAID and LIBERTY MAINE, among others.
Broadway: NOISES OFF with Jane Curtin
Off-Broadway/NY theater: OUR HOUSE, REFUGE (Playwrights Horizons); Adam Rapp’s BLACKBIRD (opposite Paul Sparks in the NY Premiere production and opposite Michael Shannon in the American Premiere in her hometown of Pittsburgh); Paula Vogel’s THE MINEOLA TWINS with Swoosie Kurtz - Outer Critics Circle Nomination (Roundabout Theater -Dir/Joe Mantello); THE PENETRATION PLAY (with 13P), FRAME 312 (Atlantic Theater
Company), STUPID KIDS (WPA/Century Theater - Dir/Michael Mayer); THE SCARIEST (Bleeker St. Theater); PARTS UNKNOWN (Chashama Theater) and most recently at The Ensemble Studio Theater.
Regional (includes): DANCING AT LUGHNASA (Two River Theatre); HOT L BALTIMORE with Sam Rockwell, Thomas Sadoski, and Lois Smith (Williamstown); UNCLE VANYA opposite Peter Dinklage and Taylor Schilling (Bard Summerscape); COMPLETENESS (South Coast Rep - Dir/Pam MacKinnon); MAURITIUS (Dorset Theatre); and CURSE OF THE STARVING CLASS with Guy Boyd and Kristine Nielsen where she got to deliver a monologue to a refrigerator (Yale
Rep).
Mandy's all-time favorite role is being Mom to her daughter, who plans to be an inventor when she grows up.
![]() Mandy Siegfried with Paul SparksThe New York premiere of Adam Rapp's Blackbird | ![]() Grey's AnatomyMandy plays Mare Winningham's daughter, Molly Grey-Thompson | ![]() The Good Wife |
---|---|---|
![]() The Guard Will Escort You... | ![]() The Apothecary's Daughter | ![]() Hot L Baltimore |
![]() Hot L Baltimore | ![]() with Lois Smith and Becky Ann BakerHot L Baltimore directed by Joe Mantello | ![]() Hot L Baltimore |
![]() Mineola Twins | ![]() Curse Of The Starving Class | ![]() Mandy Siegfried and Paul SparksBLACKBIRD |
![]() with Karl Miller in Completeness by Itamar Moses directed by Pam MacKinnon | ![]() Mandy Siegfried and Karl MillerCOMPLETENESS | ![]() Mandy Siegfried and Michael Shannonin the American premiere of Adam Rapp's BLACKBIRD |
![]() Dancing At Lughnasa | ![]() Dancing At Lughnasa | ![]() during a post show discussion of The Penetration Play with playwright Winter Miller and Gloria Steinem |
![]() recording Jay Asher's WHAT LIGHT | ![]() THAT'S WHAT SHE SAID | ![]() Recording BECKY SHAWwith Jason Ritter for LA Theatre Works |
![]() with Euan Morton | ![]() As Poppy in Noises Off on Broadway | ![]() As Poppy in Noises Off on Broadway |
![]() FRAME 312 |
REPRESENTATION
THEATRICAL :
​
SMS Talent NY
89 Fifth Ave
New York, NY 10003
Tel: 310-289-0909
SMS Talent
8383 Wilshire Blvd., Suite 230
Los Angeles, CA 90211
​Tel: 310-289-0909
​
​
VOICE:
​
Innovative Artists
235 Park Ave. South, 10th fl.
New York, NY 10003
Tel: 212-253-0300