Film

Castle made her film debut as a child actor in a small role in Vincent and Me (1990) (original title Vincent et moi).

Castle had a role in The 1997 thriller The Jackal, as the terrified child Maggie held at gun point by the film's titular assassin (Bruce Willis) in his climatic subway showdown with Declan Mulqueen (Richard Gere).^[7]

Released in 2006 was comedy drama The House with Castle playing Cindy, a member of a group of outcasts & misfits squatting in an old house. Directed by David Krae, shot in Toronto and Hamilton.^[8][9]

Weirdsville (2007) has Castle playing Treena, a member of a satanic cult that menaces the stoner protagonists of the dark comedy drama.^[10] Her and Greg Bryk's devil worshiping characters were noted as a standouts among the supporting cast in reviews.^[11][12] Supernatural slasher Dead Mary (2007), Castle plays Lily the younger girlfriend of one of a group of former college friends that reunite to spend a weekend at a lakeside cabin. When some of the party unintentionally summon the spirit of a witch by reciting her name three times in front of a mirror, possession and terror ensue.^[13] In the comedy horror film The Mad (2007) Castle plays Amy Hunt who's traveling with her father on a road trip when they encounter locals poisoned by tainted beef that causes an outbreak of zombie like symptoms in those infected.^[14]

2008's surreal comedy Hank and Mike followed the struggles of two Easter Bunnies after they are fired from their jobs, one of whom (Mike played by Paolo Mancini) has a crush on their co-worker Lena played by Castle. Though Mike is socially awkward and his fumbling attempts at a relationship with Lena are initially disastrous.^[15]

2009's romantic science fiction drama The Time Traveler's Wife Castle played Alicia Abshire the sister of Clare Abshire (played by Rachel McAdams).

After a successful Indiegogo campaign^[16] an animated feature film Todd and the Book of Pure Evil: The End of the End (2017) was created with Castle and her fellow cast-mates all returning to provide the voices.^[17] The animated feature provides a sort of third season the series never got and an ending to the cliffhanger it had gone out on.^[18]

Television

In the Goosebumps season one episode "Night of the Living Dummy II" (1996) she plays Amy Kramer, a young girl gifted a ventriloquist's dummy by her father.^[19] The doll, called Slappy, turns out to have a life of its own with evil intent and initial pranks escalate into it terrorising Amy and her family.^[20]

From 1997 to 2018 Castle provided the voice for tough, cut-off jean jacket wearing fourth grader Molly MacDonald on children's animated series Arthur.

2010 would see Castle in the role she is best known for, that of tough high schooler Jenny Kolinsky who, together with her three friends, fights supernatural evil in the cult horror comedy series Todd and the Book of Pure Evil.^[21] Castle was initially hesitant to audition for the role of Jenny Kolinsky when the series was casting because she was reluctant to play a high schooler while being in her twenties at the time, her initial indifference at the audition actually helped as it fit Jenny's character.^[22] Castle would return the next year when the show was renewed for a second season.^[23][24] In Disney Channel's romantic comedy Starstruck (2010) Castle plays Sara Olson, an obsessed fan of a teen pop idol Christopher Wilde (Sterling Knight), who drags her uninterested little sister Jessica Olson (Danielle Campbell) along to gatecrash a performance by him. This leads the younger sister and pop idol to cross paths and spend time with each other, eventually falling in love.^[25][26]

In the 2013 made for TV disaster movie Blast Vegas (AKA Destruction: Las Vegas^[27]) Castle played Olive who, together with Nelson (Frankie Muniz), find themselves fighting an ancient curse that's threatening to engulf Las Vegas in a destructive sandstorm.^[28]

Film

Television