lol, not Hoid's greatshell
1. This character has an unexpected name.
2. Someone has escaped from this character repeatedly.
3. This character was chosen for how benign they seemed until their true dangerousness was revealed.
4. This character severely scared someone in the service of Highprince Sadeas.
5. and then ate them.
Bonus Clue: The Mink is very familiar with this character.