- "To never die... and to conquer all, that is winning."
Illyria, also known as Illyria the Merciless, was one of the Old Ones, the powerful pure-breed demons that ruled Earth prior to and during the rise of humankind. In 2004, she reincarnated in the body of Winifred Burkle.
Upon her predestined resurrection, Illyria immediately went about her plan to unleash her army upon humanity, but these plans were thwarted when she discovered the destruction of her army. Lost and purposeless, and driven by the memories of Fred, Illyria struggled to find her place in the new world, and ultimately joined Team Angel in their fight.
- Superhuman strength, agility, reflexes, stamina, and near-invulnerability.
- Time manipulation.
- Interdimensional travel through self-created portals.
- Plant communication and control.
- Limited shapeshifting.
- Enhanced senses.
- Ability to differentiate between humans and non-humans.
- Exceptional skills in hand-to-hand combat.
- In her true primordial form, Illyria possesses inhuman strength, endurance, and size, armored skin and multiple tentacles, as well as all of her original powers being restored to their full potential.
Angel Season 5
- As a regular character, Illyria appears in all episodes, from "A Hole in the World" to "Not Fade Away".
- Illyria: Spotlight
Fallen Angel: Reborn
- Fallen Angel: Reborn #1-4
Spike: Shadow Puppets
- "Plush" (In Spike's thoughts)
- "Doppelgangbang" (As a puppet)
Spike: After the Fall
- Spike: After the Fall #1-4
Angel: After the Fall
- Illyria appears in all issues, with the expection of Part One.
Angel: Only Human
- Only Human #1-5
- Lorne: The Music of the Spheres
Spike: The Devil You Know
- The Devil You Know, Part One
Angel Season 6
- Aftermath, Part One
- After the Fall - Epilogue
- The Crown Prince Syndrome
- Immortality for Dummies
- The Trouble With Felicia
- The Big Dustup
- Roman a Clef
- Letters Home: A Jamesian Interlude
- Bedroom Follies
- Prophet for Profit, Part One to Three
- Cats in the Cradle
- The Wolf, the Ram, and the Heart
- Angel Yearbook
Spike: Ongoing Series
- Alone Together Now
- Haunted #1-4
Angel & Faith
- Family Reunion (Only mentioned)
Buffy Season 9
- Welcome to the Team
- The Core, Part One (only in flashbacks; primordial form)
- The Core, Part Two