Amy Louise Acker (born December 5, 1976) is an American actress, best known for her roles as Root on the scifi drama series Person of Interest (2012–2016), Caitlin Strucker on the superhero drama series The Gifted (2017-2019, based on Marvel Comics' X-Men), Winifred Burkle / Illyria on the supernatural drama series Angel (2001–2004), and Kelly Peyton on the action drama series Alias (2005–2006).
She has been married to actor James Carpinello since 2003 and they have 2 children.
The Long Run
Amy
2025
The Unbreakable Boy
Lori
2025
Average Joe
Denise Kennedy
2024
Ordinary Angels
Theresa Schmitt
2024
The Watchful Eye
Tory · (10 episodes)
2023
Creeper
Lorrie
2022
Crashing Through the Snow
Maggie Collins
2021
Outside
Woman
2020
Superman: Red Son
Lois Lane (voice)
2020
9-1-1: Lone Star
Catherine · (6 episodes)
2020
All Rise
Georgia Knight · (2 episodes)
2019
God Friended Me
Tammy · (1 episode)
2018
United We Fan
Self
2018
Amanda & Jack Go Glamping
Amanda Spencer
2017
The Gifted
Caitlin Strucker · (29 episodes)
2017
A Nutcracker Christmas
Lily
2016
MacGyver
Sarah Adler · (2 episodes)
2016
The Energy Specialist
Claire
2016
Chicago Med
Heather Williams · (1 episode)
2015
Con Man
Dawn Jones · (6 episodes)
2015
Con Man
Dawn Jones (uncredited) · (1 episode)
2015
A Novel Romance
Sophie Atkinson
2015
Let's Kill Ward's Wife
Gina
2014
The Lord of Catan
Sugar Monkey
2014
Marvel's Agents of S.H.I.E.L.D.
Audrey Nathan · (1 episode)
2013
Much Ado About Nothing
Beatrice
2013
The Cabin in the Woods
Wendy Lin
2012
Grimm
Lena Marcinko · (1 episode)
2011
Once Upon a Time
Astrid / Nova · (1 episode)
2011
Sironia
Molly
2011
Person of Interest
Root · (80 episodes)
2011
Person of Interest
Caroline Turing · (1 episode)
2011
Dear Santa
Crystal Carruthers
2011
Suits
Esther Edelstein · (5 episodes)
2011
No Ordinary Family
Amanda Grayson · (2 episodes)
2010
Scooby-Doo! Mystery Incorporated
Nova (voice) · (4 episodes)
2010
Happy Town
Rachel Conroy · (8 episodes)
2010
Human Target
Katherine Walters · (1 episode)
2010
21 and a Wake-Up
Caitlin Murphy
2009
The Good Wife
Trish Arkin · (1 episode)
2009
Warehouse 13
Tracey · (1 episode)
2009
Dollhouse
Clyde Randolph · (1 episode)
2009
Dollhouse
Dr. Claire Saunders · (9 episodes)
2009
Dollhouse
Dr. Claire Saunders / Whiskey · (1 episode)
2009
Dollhouse
Dr. Claire Saunders / Whiskey / Crystal · (1 episode)
2009
Fire and Ice: The Dragon Chronicles
Luisa
2008
A Near Death Experience
Ellie Daly
2008
Private Practice
Molly Madison · (1 episode)
2007
Drive
Kathryn Tully · (6 episodes)
2007
October Road
(2 episodes)
2007
Crossroads
Jill Yarrut
2006
Ghost Whisperer
Tessa Lucas · (1 episode)
2005
How I Met Your Mother
Penelope · (1 episode)
2005
Supernatural
Andrea Barr · (2 episodes)
2005
Mr. Dramatic
Jody
2005
Grey's Anatomy
Kathleen Shepherd · (1 episode)
2005
Celebrity Mix
Self (archive footage)
2005
Justice League Unlimited
The Huntress (voice) · (4 episodes)
2004
The New Tom Green Show
Self · (1 episode)
2003
Return to the Batcave: The Misadventures of Adam and Burt
Bonnie Lindsey
2003
Catch Me If You Can
Miggy
2002
Groom Lake
Kate
2002
Law & Order: Criminal Intent
Leslie Le Zard · (1 episode)
2001
Alias
Kelly Peyton · (17 episodes)
2001
Special Unit 2
Nancy · (1 episode)
2001
CSI: Crime Scene Investigation
Sandy Colfax · (1 episode)
2000
CSI: Crime Scene Investigation
Sandy Larken · (1 episode)
2000
Angel
Fred Burkle / Illyria · (22 episodes)
1999
Angel
Fred Burkle · (48 episodes)
1999
Wishbone
Catherine Morland · (50 episodes)
1995