With less than a week to go until RTÉ One drama, Charlie, draws to a close, RTÉ TEN caught up with some of the cast to find how they got into character. Watch the video here.

From wigs, perms and hair dye to adding body weight and lots of padding, not to mention extensive make-up tests, a lot of behind-the-scenes preparation went into bringing the screen versions of the political figures to life.

So how did Peter O'Meara (Brian Lenihan); Gavin O'Connor (Seán Doherty); Marcus Lamb (Des O'Malley) and Jody O'Neill (Geraldine Kennedy) prepare for their roles?

You can catch the third and final episode of Charlie, on Sunday January 18, at 9:30pm.