|This article is about a/an voice actor in the Power Rangers franchise.|
Outside of Power Rangers, Kirk Thornton is well known for his roles as Kisame in the Naruto series, Isa/Saix in the Kingdom Hearts series, Gabumon and Mummymon in the Digimon series, and Don Patch in Bo-Bo-Bo Bo-Bo-Bo. He is also the current voice of Shadow the Hedgehog in the Sonic the Hedgehog games.
Thornton also did voice work in several Marvel Comics productions including Adam Warlock (in the animated series Avengers: Earth's Mightiest Heroes), Mephisto (in the 2007 Ghost Rider video game) and Electro (in the video game Marvel: Ultimate Alliance 2)
He left the franchise after its purchase by Disney but has since returned to do at least one more voice in the franchise.
- Masked Rider - Recyclotron, Skull Reapers #2 and #3 (credited as Sparky Thornton)
- Mighty Morphin Power Rangers - Hatchasaurus (1st voice), Dramole, Professor Longnose (uncredited)
- Power Rangers: Zeo - Silo (2nd voice), Altor, Nuklifier (uncredited)
- Power Rangers: Turbo - Crash(Voice)
- Power Rangers: In Space - Craterites, Power Driller (uncredited), Delta Megaship Computer (2nd voice)
- Power Rangers: Lost Galaxy - Brunt, Samuron (uncredited), Alien
- Power Rangers: Lightspeed Rescue - Spellbinder
- Power Rangers: Time Force - Angelcon
- Power Rangers: Wild Force - Motorcycle Org
- VR Troopers - Mechanoid (voice)