Possible Clues:

• 2013 Nelson Mandela portrayer
• "Luther" star heard at the start of Taylor Swift's "London Boy"
• Star of the BBC's 'Luther'
• Title role player in 2013's 'Mandela: Long Walk to Freedom'
• Player of a drug kingpin on 'The Wire'
• Star of 'Mandela: Long Walk to Freedom'
• 'Luther' star
• "Luther" star
• Actor first to blow up 50 air beds?
• Actor playing lead part of Benjamin Disraeli