Greg Ellis (birthname: Jonny Rees) is an English actor and voice actor best known for his role as Lieutenant Commander Theodore Groves in Disney'sPirates of the Caribbean film series and Michael Amador in 24 as well as voice-over work in over 100 video games titles.


On the big screen he is best known for his portrayal of Lieutenant Commander Groves in Disney's Pirates of the Caribbean film series as well as starring in J.J. Abrams Star Trek (film) as Chief Engineer Olsen, the original chief engineer of the Starship Enterprise. He starred in the western Forsaken (2015 film)alongside Demi Moore with Donald Sutherland and Brian Cox.

He joined the cast of Hawaii Five-0 in season five to play Thomas Farrow in a major recurring arc, was a regular on the Fox drama Touch as Trevor Wilcox and played the villainous Michael Amador opposite Kiefer Sutherland in the 3rd season of the hit series 24. He also co-starred opposite Sir Anthony Hopkins and Angelina Jolie in Beowulf with Brad Pitt in Mr. and Mrs. Smith, and alongside Leonardo DiCaprio and Kate Winslet in Titanic (1997 film).

His television credits include: Dexter (tv series), The X-Files, The Riches, Bones (tv series), Alcatraz, Star Trek: Deep Space Nine, The Closer, CSI, Nip/Tuck, Perception, Knight Rider, Days of Our Lives and Trust Me and many more.

He is the voice of MZingo in Disney’s Lion King spin-off series The Lion Guard and Jet-Vac in the Netflix animated series Skylanders as well as the voice of Valen Rudor in the Disney animated series Star Wars Rebels.

He has a steady voice-over career in cartoons, animated movies and video games. His voice was featured in the PlayStation 2 games Rogue Galaxy (as Simon Wicard), Dirge of Cerberus: Final Fantasy VII (as Cait Sith), and Tomb Raider: Legend (as Alister Fletcher), as well as in Dragon Age: OriginsDragon Age II, and Dragon Age: Inquisition (as Cullen). His minor video game work includes voices for SOCOM II: U.S. Navy SEALsSOCOM 3: U.S. Navy SEALsStar Wars: Knights of the Old Republic II: The Sith LordsTomb Raider: Underworld, and Ty the Tasmanian Tiger. He has also voiced characters in cartoons such as The Grim Adventures of Billy & MandyInvader Zim, and first three series of the Ben 10 franchise.

He played Cmdr. Giles Price in the game Command & Conquer: Red Alert 3 and reprised the role in Command & Conquer: Red Alert 3 - Uprising. He reprised his role as Cait Sith in the English version of the CGI film Final Fantasy VII Advent Children. He voiced Garmund in the Robert Zemeckis animated film, Beowulf.[1]Ellis originally started in musicals and was Rusty in Starlight Express at the Apollo Victoria Theatre and was the alternate Chris in the original cast of Miss Saigon at the Theatre Royal, Drury Lane. He also appears on the cast recording of the new Starlight Express. He released a single from the show, "Next Time Love”


Live-action roles


List of live-action performances in television
Year Title Role Notes
1990 Brush Strokes Terry Episode: "Episode #4.5"
1990–1991 Bread P.C. Lloyd 21 episodes
1998 The X-Files 3rd British Crewman Episode: "Triangle"
1999 Star Trek: Deep Space Nine Ekoor Episode: "What You Leave Behind"
2013 Touch Trevor Wilcox 13 episodes
2003–2004 24 Michael Amador 9 episodes
2005, 2014 CSI: Crime Scene Investigation Foxy Harris, Special Agent Sturgis 2 episodes
2006 Bones Kevin Hollings Episode: "Two Bodies in the Lab"
2008–2009 Valentine Ari Valentine / Ares 8 episodes
2009 Trust Me Simon Cochran 7 episodes
2009 Dexter Jonathan Farrow Episode: "Slack Tide"
2010 Nip/Tuck Adam Wise Episode: "Joel Seabrook"
2011 The Confession Sheldon Hoffman Episode: "Chapter 7"
2012 Days of Our Lives Agent Spencer 27 episodes
2012 Alcatraz Garrett Stillman Episode: "Garrett Stillman"
2014 Hawaii Five-0 Thomas Farrow 4 episodes
2018 Lucifer Myles Drunker Episode: "Anything Pierce Can Do I Can Do Better"
  • Mr. Gum – Mr. Gum


  • – Springer
  • Forsaken – Tom Watson
  • Knight Rider – Welther
  • Mr. & Mrs. Smith – Mickey (Dive Bar Patron #1)
  • Pirates of the Caribbean: The Curse of the Black Pearl – Lieutenant Theodore Groves
  • Pirates of the Caribbean: At World's End – Lieutenant Theodore Groves
  • Pirates of the Caribbean: On Stranger Tides – Lieutenant Commander Theodore Groves
  • Rogue – Peter Reid
  • Star Trek – Chief Engineer Olsen
  • Summer Music Mania 2004 – Announcer
  • The Hobbit: The Desolation of Smaug – Net Mender
  • Titanic – Carpathia Steward
  • To End All Wars – Primrose


  • Cell Call – Donovan

Voice roles


Year Title Role Notes
1999 The Wild Thornberrys Bim, Whippet Ep. "Koality Komforts/Oh, Brother?"
2002 Dan Dare: Pilot of the Future Dan Dare
2004 Teen Titans Malchior, Punk Rocket
2004 Evil Con Carne Lady of the Lake, Prince, Bobby #2 Ep. "Jealousy, Jealous Do/Hector, King of the Britons"
2004–2007 The Grim Adventures of Billy & Mandy Entity Two, Another Astronaut, Lawn Gnome

Pig #2, Delivery Guy, Lord Byron
Windham, Daddy Elf, Druid #1, Miguel

2006 Ben 10 Synaptak Ep. "The Galactic Enforcers"
2006 Legion of Super Heroes Drax, Shadowy Voice

Phantom, Science Police

Ep. "Phantoms"
2007 The Batman Count Vertigo Ep. "Vertigo"
2007–2008 Phineas and Ferb Jameson, Angry Mob
2008 Ben 10: Alien Force Forever Knight #1, Forever Knight #2, Jailer, Squire
2008–2011 Batman: The Brave and the Bold Gentleman Ghost, Doctor Fate, Cavalier

Doctor Canus, Hawk, Shrapnel
Mr. Mind, Computer Voice
Nuclear Engineer, Hawk, Kafka, James Craddock

2009 Star Wars: The Clone Wars Turk Falso 2 Episodes
2009 Ape Escape Specter
2010–2011 Ben 10: Ultimate Alien Prince Gyula, Cyborg #2

Dagonet, Reporter Chet Rigby

2010–2013 Generator Rex Gatlocke
2011–2013 Scooby-Doo! Mystery Incorporated Charles Weatlesby, Destroido Computer
2013–2014 Beware the Batman Phosphorus Rex, Milo Match
2014–2016 Transformers: Rescue Bots Dr. Thaddeus Morocco (2nd voice), Mr. Foster
2014–2017 Star Wars Rebels Baron Valen Rudor, Stormtrooper #5 [2]
2016 The Lion Guard Mzingo Credited as Jonny Rees
2016–2017 Skylanders Academy Jet-Vac
2017–2018 Star vs. the Forces of Evil Manfred / Additional Voices Credited as Jonny Rees
  • Avengers: Earth's Mightiest Heroes – Rocket Raccoon
  • Bratz – Byron Powell, Sir Nigel Forrester
  • Be Cool, Scooby-Doo! - Dr. Messmer, Kitchen staff member
  • G.I. Joe: Renegades – Breaker, Alvin Kibbey, Cobra Ops Supervisor
  • Scooby-Doo! Mystery Incorporated – Charles Weatlesby, Destroido Computer
  • Sofia the First – Spruce, additional voices
  • The Angry Beavers – Randy Beaver, Supercomputer
  • Teenage Mutant Ninja Turtles – Lieutenant Zorg, Triceraton #2


List of voice performances in live-action films
Year Title Role Notes
2006 Garfield: A Tail of Two Kitties Nigel
2008 Dr. Dolittle: Tail to the Chief Wallaby Direct-to-video
2009 Dr. Dolittle: Million Dollar Mutts Dave the Dove Direct-to-video
List of voice performances in animated films
Year Title Role Notes
2006 Bratz Babyz: The Movie Harvey Direct-to-video
Final Fantasy VII Advent Children Cait Sith English Dub
Billy and Mandy's Big Boogey Adventure Creeper, Horror's Hand, Pirate #3, Paperboy
2010 Dante's Inferno: An Animated Epic Plato Direct-to-video
Tom and Jerry Meet Sherlock Holmes Tin / Sergeant
2011 Cars 2 Sir Nigel Gearsely
2012 Tom and Jerry: Robin Hood and His Merry Mouse Will Scarlet / Tin Direct-to-video
Big Top Scooby-Doo! Marius Brancusi
Foodfight! Hairy Hold
2013 Tom and Jerry's Giant Adventure Tin Direct-to-video
2014 Khumba Thabo, Elder # 1 English Dub
Batman: Assault on Arkham Captain Boomerang Direct-to-video
Tom and Jerry: The Lost Dragon Tin
2015 Tom and Jerry: Spy Quest
The Lion Guard: Return of the Roar Mzingo Television film
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