Anthony Hopkins and Karl Johnson in King Lear (2018)

Karl Johnson and Stephen McGann in Call the Midwife (2012)

Kenneth Cranham and Karl Johnson in Máu Lửa Thành Rome (2005)

Mark Heap and Karl Johnson in Lark Rise to Candleford (2008)

Karl Johnson and John Dagleish in Lark Rise to Candleford (2008)

Linda Bassett, Dawn French, and Karl Johnson in Lark Rise to Candleford (2008)

Jim Broadbent, Timothy Dalton, Karl Johnson, and Simon Pegg in Siêu Cớm (2007)

Nigel Carrington, Colin Haigh, Diveen Henry, Anastasia Hille, Karl Johnson, Morag Siller, Matthew Steer, Leo Bill, Benedict Cumberbatch, Barry Aird, Ruairi Conaghan, Rudi Dharmalingam, Kobna Holdbrook-Smith, Sergo Vares, Jan Shepherd, Amaka Okafor, Dwane Walcott, Paul Ham, Eddie Arnold, and Dan Parr at an event for National Theatre Live: Hamlet (2015)