This article is about a subject in the real world.
Information in this article is about real-life people, companies, and objects, and does not relate to the in-universe Sonic series.
Weehawken, New Jersey
Liam O'Brien is an American voice actor and writer who has done voice acting for the .
Sonic the Hedgehog series
O'Brien grew up in Weehawken, New Jersey. His mother Lois Wiltse O'Brien worked as an educator and as a quality assurance trainer and consultant. He started getting into acting in high school. After attending New York University Tisch School of the Arts, he worked in theater on various productions around the country.
While working on a production of Romeo & Juliet in Cincinnati, he met Crispin Freeman, who helped him get into voice-over in cartoons and anime back in New York City.
O'Brien's characters have varied in terms of styles. He affirms that he plays characters that are typically insane or evil geniuses, although he has also voiced comedic characters such as Fukuyama in
Girls Bravo where he said he would "break out in a sweat matching his level of nuttiness". He describes Cumoire from Tales of Vesperia as "slightly unhinged". In Darksiders, he voices the lead character War, one of the Four Horsemen of the Apocalypse. He describes his voicing as deeper than his usual voice, and that he portrayed him as a fairly old soul who isn't surprised at the events around him. In the video game-based film Final Fantasy VII: Advent Children' he voiced Red XIII.
In addition to voice acting, O'Brien has worked as a voice director and writer on various video games and anime shows. He also participates in a web series called
Critical Role, where various actors band together to play Dungeons & Dragons.
Main article | Gallery | Glitches | Script | Credits ( Wii U, 3DS) | Re-releases ( PC)
Sonic ( Super Sonic) | Tails | Dr. Eggman | Orbot | Cubot | Knuckles | Amy | Deadly Six ( Zavok, Zazz, Zomom, Master Zik, Zeena, Zor) | Yacker* | Animals ( Cucky, Flicky, Pecky, Picky, Pocky, Ricky, Rocky) | Omochao* | NiGHTS^ | Yoshi^
Stages Windy Hill | Desert Ruins | Tropical Coast | Frozen Factory | Silent Forest | Sky Road | Lava Mountain | Hidden World* | Special Stage** | Nightmare Zone^ | Yoshi's Island Zone^ | The Legend of Zelda Zone^ | Circus*
Badniks Antlion | Antlion Mother* | Anton* | Aquis* | Balkiry | Ball Hog* | Bat Brain | BFB* | Bladed Spinner** | Blowfish Transporter | Blaster* | Bomb* | Boo* | Boom Boo* | Burrobot* | Buzz Bomber | Caterkiller | Chopper* | Clucker | Cluckoid* | Coconuts* | Crabmeat* | Crawl | Crawlton | Dragonfly* | Dung Beetle* | Egg Pawn | Electro Spinner** | Galaga Bee* | Gohla | Grabber | Gustav Turtle | Jaws | Laser Grabber* | Madmole* | Manbou* | Manta* | Moto Bug | Mushmeanie* | Nebula* | Newtron | Octus* | Orbinaut ( Uni Uni, Unidasu) | Pata-Bata* | Penguinator | Sandworm | Slicer | Snale Blaster* | Spiker* | Spikes* | Sprinkler* | Tarantula* | Tonber* | Turtloids* | Utsubo*
Baku Baku* | Cactus Ball | Sandworm | Sheep* | Surprise Crocodile* | Yeti*
Zazz | Zomom | Master Zik | Zeena | Zor | Zavok | Deadly Six | Eggrobo
Parkour Somersault Kick** | Wall Climb** | Wall Jump** | Wall Run | Vault Dash*
Bound Jump** | Charged Dash** | Dash | Double Jump | Flying Kick* | Grind Step | Grinding | Sky Dive | Spin Dash | Spin Jump
Wisps White* | Cyan | Yellow | Indigo | Crimson* | Magenta* | Green* | Black*^ | Red** | Ivory** | Gray**
Color Powers Cyan Laser | Yellow Drill | Indigo Asteroid | Crimson Eagle* | Magenta Rhythm* | Green Hover* | Black Bomb*^ | Red Burst** | Ivory Lightning** | Gray Quake**
RC Vehicles Helicopter RC Vehicle | Fighter Jet RC Vehicle | Stealth Jet RC Vehicle | Hovercraft RC Vehicle | UFO RC Vehicle | Balloon RC Vehicle | Omochao RC Vehicle
** Materials Green Material** | Yellow Material** | Blue Material** | White Material** | Iron Material** | Black Material** | Red Material** | Bronze Material** | Silver Material** | Gold Material**
English voice actors
Roger Craig Smith ( | Sonic) Mike Pollock ( | Eggman) Kate Higgins ( | Tails) Travis Willingham ( | Knuckles, Zavok) Cindy Robinson ( | Amy) Kirk Thornton ( | Orbot, Master Zik) Wally Wingert ( | Cubot) Liam O'Brien ( | Zazz) Patrick Seitz ( | Zomom) Stephanie Sheh ( | Zeena) Sam Riegel (
Japanese voice actors
Junichi Kanemaru ( | Sonic) Chikao Ōtsuka ( | Eggman) Ryo Hirohashi ( | Tails) Nobutoshi Kanna ( | Knuckles) Taeko Kawata ( | Amy) Mitsuo Iwata ( | Orbot) Wataru Takagi ( | Cubot) Jōji Nakata ( | Zavok) Yutaka Aoyama ( | Zazz) Yumi Tōma ( | Zeena) Mugihito ( | Master Zik) Chafūrin ( | Zomom) Yūki Tai (
1-Up | Air Bubbles** | Apple | Archie Sonic Halloween Comic Fest 2013 | Asteroid Ring | Auto Running* | Balloon* | Bound bell* | Billiard Ball | Bingo | Bonus Point* | Cacophonic Conch | Cage | Cannon* | Case** | Casino Token* | Chaos Emerald | Cloud | Coconut* | Conveyor Belt* | Dash Panel | Dash Rail | Dash Ring** | Extractor | Fan** | Flipper | Flower Cannon | Flywheel** | Freeze | Grind Rail | Havok | Health Gauge** | High-speed warp tube* | Hint Ring | Item Box ( Aqua Shield**, Flame Shield, Invincibility, Power Sneakers, Super Ring, Thunder Shield, Warp*) | Jump Panel** | Lost Hex | Metal nut* | Miles Electric | Minecart | Mission | Moon Mech | Musical note | Number Ring* | Pinball Shooter* | Planetoid Spring* | Prism | Rank** | Ring | Roboticization | Seesaw | Slot Machine* | Snowball | Snowball Sonic* | Snowblower | Sphere** | Spring | Tails' Lab** | Time Attack* | Tornado | Totem Pole | Truffle Cannon* | Virtual Hedgehog* | Windmill* | Wisp Away* | Wisp Gauge | | Without Boundaries: Sonic Lost World Original Soundtrack Zeti
"*" Exclusively to
Wii U version "**" Exclusive to Nintendo 3DS version "^" Exclusive to the Wii U version and downloadable content.