Quinlan has had a lengthy and distinguished career, starting with a featured role in American Graffiti. She has also had featured roles in Lucas Tanner, The Waltons, Hanky Panky, Twilight Zone: The Movie, The Doors, Zeus and Roxanne, Breakdown, A Civil Action, Too Rich: The Life of Doris Duke, Family Law, Breach, Prison Break, The Event and Blue.
- Appeared with Jesse Spencer on Chicago Fire
- Appeared with Jayma Mays on Glee
- Appeared with Thomas Dekker and Patrick Fugit in Cinema Verite
- Appeared with Zeljko Ivanek on The Event
- Appeared with Wentworth Miller and Sarah Wayne Callies on Prison Break
- Appeared with Beau Garrett in Empire State
- Appeared with Beau Garrett in Made of Honor