Related Clues:

• ''Friend or ---?''
• Superman, to Lex Luthor
• Goliath, to David, e.g.
• Catwoman, to Batman
• Unbeatable foe
• The other team
• Hostile party
• Ness vis-ˆ-vis Capone
• Other side
• Attacker
• Napoleon, to Wellington
• Retribution
• 'Star Trek: ___'
• Opposition member
• Opposing side