Simon Russell Beale, Zawe Ashton, Peter Capaldi, James Norton, Olivia Williams, Jonathan Pryce, Phoebe Pryce, Hayley Atwell, Meera Syal, Ben Miles, Jamie Parker, Danny Sapani, Mel Giedroyc, Aidan Gillen, Joshua McGuire, Paul Chahidi, Pauline McLynn, Joseph Marcell, Kenneth Cranham, Tom Burke, David Burke, Jessie Buckley, Luke Thompson, Susannah Fielding, Lindsay Duncan and David Calder is to join the cast of the Complete Walk