Possible Clues:

• Fictional captain who said 'Thou damned whale!'
• 'Wilt thou not chase the white whale?' speaker
• Captain with the 'overbearing dignity of some mighty woe'
• Obsessive literary captain
• Moby-Dick's chaser
• Captain of the whaler Pequod
• Melville tyrant
• 'Moby-Dick' helmsman
• King of Kings
• One whose nemesis was white king