R. D. Laing

Ronald David Laing, usually cited as R. D. Laing, was a Scottish psychiatrist who wrote extensively on mental illness, particularly psychosis and schizophrenia. Politically, Laing was regarded as a thinker of the New Left. He has been theatrically portrayed by Mike Maran, Alan Cox, Billy Mack, and David Tennant in the 2017 film Mad to Be Normal.