Crowley is the albino pet raven of Rowan, and is often seen perching on their shoulder. He transforms into a Scythe with Rowan.
Crowley is shown to have high intelligence. He is capable of speech, is shown to feel emotions like jealousy, and courtesy by bowing.
Rowan also mentions that Crowley is popular online, with the pictures, and videos of him attracting a large amount of followers.
- Crowley is the last name of Aleister Crowley, creator of the Thoth Tarot Deck. 
- Crowley repeatedly says "Nevermore", which is the phrase repeatedly said by the raven in narrative poem 'The Raven' by Edgar Allan Poe.