Cerberus (Once Upon a Time)

Cerberus is a minor antagonist in the fifth season of Once Upon a Time. He is a three-headed dog who acts as Hades' personal blood hound. It is based on the dog of the same name from Greek Mythsand the Disney film Hercules.

Cerberus killed both Megara and Hercules but in the Underworld, they both kill it with the help of Snow White and are able to ascend to Mount Olympus.

Series

Once Upon a Time

Main: Emma Swan/The Savior • Regina Mills/Evil Queen/Roni • Henry Mills/The Author • Snow White/Mary Margaret Blanchard • David Nolan/Prince James/Prince Charming • Rumplestiltskin/Mr. Gold/Detective Weaver • Belle/Lacey French • Killian Jones/Captain Hook • Zelena/Wicked Witch of the West/Kelly West • Jiminy Cricket/Archie Hopper • Pinocchio/August W. Booth • Ruby Lucas/Red Riding Hood • Will Scarlet • Robin Hood • Cinderella/Jacinda Vidrio • Queen Tiana/Sabine • Rapunzel/Lady Tremaine/Victoria Belfrey • Lucy Mills/Lucy Vidrio • Wish Realm Hook/Detective Rodgers • Alice Jones • Robin Hood II

Recurring Characters: Huntsman/Sheriff Graham Humbert • Dreamy/Grumpy/Leroy • Sneezy/Tom Clark • Doc • Sleepy/Walter • Bashful • Happy • Dopey • Jefferson/Mad Hatter • Geppetto/Marco • Prince Henry Mills • Maleficent • Cinderella/Ashley Boyd • Prince Thomas / Sean Hermann • Baelfire/Neal Cassidy • Granny/Widow Lucas • Dr. Whale/Victor Frankenstein • Genie/Magic MIrror/Sidney Glass • Leopold • Nurse Ratched • Blue Fairy/Rheul Ghorm/Mother Superior • Ruth • King Midas • Hansel and Gretel/Nicholas and Ava Zimmer • Stealthy • Maurice/Moe French • Nova/Sister Astrid • Daniel • Peter • Aurora • Mulan • William Smee • Anton • Prince Philip • Milah • Wendy Darling • Michael Darling • John Darling • Lancelot • Ursula • Lily Page • Drizella Tremaine • Anastasia Tremaine • Pongo • Clorinda • Liam/First Mate • Captain Liam Jones • Maid Marian • Ariel • Captain Nemo • Prince Naveen/Drew • Robert/Prince Marias • Aladdin • Jasmine • Tinker Bell • Tiger Lily • Dorothy Gale • Glinda • Elsa • Anna • Kristoff • Helga • Gerda • Grand Pabbie • Merlin • King Arthur • Queen Guinevere • Violet Morgan • Merida • Zeus • Queen Elinor • King Fergus • Harris, Hubert and Hamish • Marcus Tremaine • Cecelia Tremaine

Major Antagonists: Cora Mills/Queen of Hearts • Greg Mendell/Owen Flynn • Tamara • Peter Pan • The Shadow • Felix • King George/Albert Spencer • Prince James • Gothel • Cruella De Vil • Wish Realm Rumplestiltskin • Sheriff of Nottingham/Keith • Bo Peep • Gaston • Lady Tremaine • Blackbeard • Tisbe • Coven of the Eight (Madame Leota • Blind Witch/Hilda Braeburn • Hedge Witch/Andra Sage • Seraphina) • Dr. Facilier/Mr. Baron Samdi • Hansel/Jack/Nick Branson • Gretel • Martin & Myrna • Zoso • Blind Witch • Jack • Anita • Quinn • Alphonse Frankenstein • Gerhardt Frankenstein • Walsh • Hades • Black Fairy • Evil Queen • Dr. Jekyll • Mr. Hyde • Ingrid • Prince Hans • Nimue/The Darkness • Vortigan

Once Upon a Time in Wonderland
Main: Alice (original) • Cyrus • Anastasia/Red Queen/White Queen • Elizabeth • Sarah • Edwin • Millie • Dr. Lydgate

Groups
Authors • Black Knights • Collectors • Coven of the Eight • Guardians • Knights of the Round Table • Lost Boys • Merry Men • Oz Guards • Resistance • Saviors • Sisters of Saint Meissa

Species
Fairies • Unicorns • Dragons • Bridge Trolls • Wraith • Ogres • Mermaids • Kraken • Flying Monkeys • Rock Trolls • Will O' the Wisps • Furies • Munchkins • Tree Nymphs

Locations

Earth (Storybrooke) • Enchanted Forest • Agrabah • Arendelle • Camelot • DunBroch • Wonderland • Land Without Color • Neverland • Victorian England • Oz • 1920s England • Land of Untold Stories • 19th Century France • World Behind the Mirror • Wish Realm • Dark Realm • New Enchanted Forest • Edge of Realms • New Wonderland • Dream World • Netherworld • Underworld • Mount Olympus