Edmund Pevensie's capabilities, features, youth and smart-arse attitude are spot on for Emperor Raven and, considering Krowmeole and Griffin are identical to Raven, Edmund is a good match for them too!
Another take in the sock bun! Push the sock down to the bottom of the pony tail. Spread the hair out around the sock and secure with an elastic. Braid the remaining hair wrapping it around the bun, pinning it down till its secure.