Mia Dillon

• Born — 9 July 1955 • Birthplace — Colorado Springs, Colorado • Occupation — Actress • Years Active — 1979–present Mia Dillon (born July 9, 1955) is an American actress.

Dillon was born July 9, 1955, in Colorado Springs, Colorado; her family moved to the Philadelphia area when she was a child. Growing up, she desired to become an actress from when she was 10 years old, and she studied acting at Penn State. She commuted to New York, auditioning for "low- or no-pay 'showcases'", while she supported herself with jobs that included being a waitress, taking ticket orders for the Metropolitan Opera Guild, and working as an office temp. Eventually she was cast as an understudy in the 1976 Off-Broadway production The Shortchanged Review, at the Mitzi E. Newhouse Theater.

Dillon made her Broadway debut as an understudy for the roles of Jill Mason and the Nurse in Peter Shaffer's Equus in 1977. She was nominated for the 1980 Drama Desk Award for Outstanding Featured Actress in a Play for Once a Catholic, and the 1982 Tony Award for Best Featured Actress in a Play for Crimes of the Heart. Her other theater credits include Agnes of God, The Corn is Green, Hay Fever, Come Back, Little Sheba, Three Sisters, and Our Town. In 1985 Dillon performed in a staged reading of the novel Breaker Boys at Pennsylvania's Showcase Theatre. On television, Dillon was featured in Mary and Rhoda and has appeared in guest roles in episodes of three different series in the Law & Order franchise. Her screen credits include The Money Pit, A Shock to the System, Gods and Generals, and Duane Hopwood. Dillon was also featured in the Disney Channel TV movie Lots of Luck, alongside Annette Funicello and Martin Mull.

Dillon married actor Keir Dullea in 1999.

• Year — Title — Role — Notes • 1980 — The Molders of Troy — Sister — TV movie • 1980 — The Jilting of Granny Weatherall — Hapsy — TV movie • 1985 — Lots of Luck — Jessie Foley — TV movie • 1990 — Fine Things — Tracy — TV movie • 1992, 1997, 2001, 2009 — Law & Order — Various roles — 4 episodes • 1999 — Cosby — Mrs. Harris — Episode: "The Party's Over" • 2000 — Mary and Rhoda — Mother — TV movie • 2001 — Law & Order: Special Victims Unit — Mrs. Jansen — Episode: "Sacrifice" • 2002 — Law & Order: Criminal Intent — Barb Windemere — Episode: "Faith" • 2003 — Our Town — Mrs. Soames — TV movie • 2004 — The Jury — Dr. Sullivan — 3 episodes • 2016 — BrainDead — Nora Ritter — 2 episodes • 2025 — Elsbeth — Sister Frances — Episode: "And Then There Were Nuns"