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Thomas Alexander Dekker (born December 28, 1987, in Las Vegas, Nevada)1 is an American actor, voice actor, singer, and musician best known for playing John Connor in Fox's Terminator: The Sarah Connor Chronicles (2008-2009) and Zach in Heroes (2006).1 He voiced guest characters in two episodes of Extreme Ghostbusters in 1997.2
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Dekker was born in Las Vegas to a Welsh-American family with strong ties to the performing arts. His mother, Hilary (née Williams), is a concert pianist, acting coach, and performer; his maternal grandfather was Alun Williams, a BBC radio broadcaster.1 His father, David John Ellis Dekker, was an artist, opera singer, and actor of English and Dutch heritage.1 As a young child, Dekker relocated internationally with his family, living in the United Kingdom (Yorkshire, England) and Canada before returning to the United States.1
He began acting at the age of six, making his professional debut in 1993.1
Dekker's first screen credit was on the daytime soap opera The Young and the Restless in 1993.1 He appeared in Star Trek Generations (1994) and two episodes of Star Trek: Voyager, and had guest appearances in two episodes of Seinfeld in season five (1994) and season seven (1995), playing different characters in each.1 In 1995, he appeared in John Carpenter's Village of the Damned.2 From 1997 to 2000, he was a series regular on Disney Channel's Honey, I Shrunk the Kids: The TV Show, playing Nick Szalinski, a role that earned him a Young Artist Award for Best Performance in a Television Comedy.1 He subsequently appeared in episodic roles on House, CSI, Boston Public, 7th Heaven, and Reba, picking up additional Young Artist Award nominations along the way.1
Alongside his live-action work, Dekker built a substantial voice acting career in animated features during the late 1990s. He provided the voice (and in the fifth entry, the singing voice) of Littlefoot across The Land Before Time V through The Land Before Time IX, and voiced Fievel Mousekewitz in An American Tail: The Treasure of Manhattan Island and An American Tail: The Mystery of the Night Monster, the latter earning him a Young Artist Award for Voice-Over Performance.1
In 2006, Dekker gained wider attention with a recurring role as Zach in the NBC superhero drama Heroes.1 He followed that with the lead role of John Connor in Fox's Terminator: The Sarah Connor Chronicles (2008-2009), opposite Lena Headey and Summer Glau.1 The series ran for two seasons and established Dekker as a recognizable face in genre television.
His feature film credits include My Sister's Keeper (2009), Kaboom (2010, directed by Gregg Araki, which won the inaugural Queer Palm at the Cannes Film Festival),3 and a reimagined A Nightmare on Elm Street (2010), in which he played Jesse Braun.1 He portrayed journalist Lance Loud in the HBO docudrama Cinema Verite (2011) and played Gregory Valentine in the Fox procedural Backstrom (2015).1 He also starred as Adam Conant in the CW series The Secret Circle (2011-2012).1
Dekker began composing his own music as a teenager in Canada, signing a record deal at fifteen before pursuing independent releases.1 He describes his style as "electrofolk," blending electronica with classical influences. His debut album, Psyanotic, was released in 2008.1 A second album, Into the Night, followed in 2018, and a third, Tasma, in 2021.1 In 2013, he appeared in Daughtry's music video for "Waiting for Superman."1
Dekker appeared as a guest voice actor in two episodes of Extreme Ghostbusters in 1997, the animated series produced by DiC Entertainment and Sony Pictures. At the time, he was roughly nine years old and actively working in animation voice roles alongside his Land Before Time and An American Tail work.
Dekker has spoken publicly about experiencing childhood sexual abuse.1 On July 13, 2017, he publicly came out as gay, revealing that he had married Canadian actor Jesse Haddock in April 2017.1 He identifies as vegan.
Some content on this page was researched using the Ghostbusters Wiki on Fandom.
"Thomas Dekker (actor)," Wikipedia, accessed 2026-06-13, https://en.wikipedia.org/wiki/Thomas_Dekker_(actor). ↩ ↩2 ↩3 ↩4 ↩5 ↩6 ↩7 ↩8 ↩9 ↩10 ↩11 ↩12 ↩13 ↩14 ↩15 ↩16 ↩17 ↩18 ↩19 ↩20 ↩21 ↩22
"Thomas Dekker (nm0215281)," IMDb, accessed 2026-06-13, https://www.imdb.com/name/nm0215281/. Confirms Village of the Damned (1995) as David McGowan, and lists two Extreme Ghostbusters credits in 1997. ↩ ↩2
"UPDATE: 'Kaboom' Claims First Queer Palm," IndieWire (May 22, 2010), https://www.indiewire.com/news/general-news/update-kaboom-claims-first-queer-palm-55037/. ↩
"Extreme Ghostbusters: Home Is Where the Horror Is" (1997), IMDb, https://www.imdb.com/title/tt0574531/. Accessed 2026-06-13. ↩
"Extreme Ghostbusters: Rage" (1997), IMDb, https://www.imdb.com/title/tt0574536/. Accessed 2026-06-13. ↩
