Mrs. O'Leary

Mrs. O'Leary
Character information
Alignment	Good
Affiliations	Daedalus Nico di Angelo Percy Jackson
Relationships
Allies	Daedalus, Percy Jackson, Annabeth Chase, Charles Beckendorf, Rachel Elizabeth Dare, Hestia, Cerberus, Tyson
Enemies	Luke Castellan

Mrs. O'Leary is a character in Percy Jackson and the Olympians. She is a hellhound and one of Percy Jackson's two animal companions

Series

Main Characters Percy Jackson • Grover Underwood • Annabeth Chase • Tyson • Clarisse La Rue • Thalia Grace • Nico di Angelo • Chiron • Luke Castellan • Rachel Elizabeth Dare Minor Characters: Travis Stoll • Connor Stoll • Mrs. O'Leary • Silena Beauregard • Charles Beckendorf • Sally Jackson • Paul Blofis • Blackjack • Zoë Nightshade • Bianca di Angelo • Juniper • Michael Yew • Ethan Nakamura • Katie Gardner • Miranda Gardiner • Daedalus Olympian Gods: Zeus • Hera • Poseidon • Demeter • Ares • Athena • Apollo • Artemis • Hephaestus • Aphrodite • Hermes • Dionysus • Hades • Hestia Minor Gods: Amphitrite • Ariadne • Hecate • Iris • Janus • Morpheus • Nemesis • Pan • Persephone • Triton Groups Olympians • Demigods • Camp Half-Blood members • Titan Army - Olympian Army Locations Camp Half-Blood Movies Characters: Percy Jackson, Annabeth Chase, Clariss La Rue (Percy Jackson Films), Kronos, Hades TV Series Main Characters: Percy Jackson, Annabeth Chase, Grover Underwood Secondary Characters: Sally Jackson • Chiron • Luke Castellan • Clarisse La Rue • Chris Rodriguez Minor Characters: Nancy Bobofit • Gabe Ugliano • Eddie • Oracle of Delphi • Thalia Grace • Ferdinand Underwood • Nereid • Fates • Augustus • Nico di Angelo • Bianca di Angelo • Charon Greek Gods: Zeus • Poseidon • Hades • Dionysus • Hermes • Ares • Athena • Hephaestus Titans: Kronos Monsters: Alecto • Minotaur • Medusa • Echidna • Chimera • Procrustes • Cerberus