Possible Clues:

• 'Codebreaker' Turing
• Thicke from Canada
• Cumming of 'The Good Wife'
• The 'A' in Chester A. Arthur
• Revolutionary Guardian rebels - editor's heading off to the right to find himself
• The Fed's Greenspan
• "Eye in the Sky" Parsons
• ''Two and a Half Men'' guy
• Canned Heat's Wilson
• Former Fed chairman Greenspan