Possible Clues:

• 'Cold Mountain' star
• He plays Dr. John Watson
• Watson in two 2000s Sherlock films
• Dumbledore in ''Fantastic Beasts''
• Portrayer of 1-/69-Across in "Sherlock Holmes"
• Dr. Watson player in 2009's 'Sherlock Holmes'
• 'Cold Mountain' actor
• 'Gattaca' actor
• Errol Flynn portrayer in 'The Aviator'