Wire star Peters played Nelson Mandela in Channel 4 drama ‘Endgame’ in 2009.
He said he preferred to study Mandela’s speeches to get into the role.
He said: ‘I once directed a man in the role of Martin Luther King. The actor would talk about him in third person and I would say ‘you are not getting what I am saying. I know he meant a lot to you, but how would you do what he did? I don’t want you to play the end of it’.
‘The challenge was to be as ordinary a person as you can but one on a mission.’