Acting

2021		Meet, Marry, Murder (13 episodes) as Self - Host
2021		Gossip Girl (2 episodes) as Georgina Sparks

2018

(21 episodes) as Judy (voice)

2015

(30 episodes) as Anna

2014

(1 episode) as Voice Over (voice)

2013		Sleepy Hollow (1 episode) as Abigail Adams
2013		Hollywood Game Night (1 episode) as Self

2011

(8 episodes) as Jodie

2009		Mercy (22 episodes) as Chloe Payne
2009		The Super Hero Squad Show (52 episodes) as Valkyrie
2009		Late Night with Jimmy Fallon (1 episode) as Self

2007

(28 episodes) as Georgina Sparks

2006

(1 episode) as Herself

2005		Criminal Minds (2 episodes) as Diane Turner
2005		Weeds (5 episodes) as Emma Karlin

2004		House (1 episode) as Melinda Bardach
2004		Best Week Ever (3 episodes)
2004		On Air with Ryan Seacrest (1 episode) as Self

2003		Punk'd (1 episode) as Self
2003		Jimmy Kimmel Live! (1 episode)

2001		Truth or Scare (20 episodes) as Self - Host
2001		Law & Order: Criminal Intent (1 episode) as Lisa Willow Tyler
2001		Six Feet Under (8 episodes) as Celeste

1998

(13 episodes) as Katie

1997		The Wonderful World of Disney (1 episode)
1997		Meego (13 episodes) as Maggie Parker
1997		The View (1 episode) as Self
1997		Figure It Out (61 episodes) as Self
1997		Buffy the Vampire Slayer (66 episodes) as Dawn Summers

1996		Blue's Clues (1 episode)
1996		The Rosie O'Donnell Show (1 episode) as Self - Guest
1996		Space Cases (1 episode)

1995

(1 episode) as Self

1993		Dave's World (1 episode)
1993		Late Night with Conan O'Brien (1 episode) as Self - Guest

1990

(1 episode) as Dinah Driscoll (uncredited)

1983

(1 episode) as Herself - Narrator (voice)

Production

2015

(30 episodes) … Executive Producer