Donovan is a rebellious warlock in Avalon: The Warlock Diaries. He is about Kara's age and wants to prove to the Warlock Elders that warlocks and mages can work together to find Avalon and save the magic web. He uses ancient spells and potions to make magic, and his minion-turned-bonded is the shapeshifting Frizzle.
Kara Davies has a love-at-first-sight thing for Donovan. At the party at Ravenswood, they go into the forest alone and nearly kiss before Crumble appears. Kara thinks it was Donovan's fault that Dreamer and Lyra were captured and is devastated that he betrayed her. While going through the portal, Kara rips a picture of Donovan out of the notebook and says love stinks. In the end when Donovan leaves, Kara realizes it was not his fault and kisses him on the cheek right when he disappears.
Donovan was inspired by Ian from Princess Gwenevere and the Jewel Riders.