Lionel George Logue , CVO ( 26 February 1880 -- 12 April 1953 ) was an Australian speech and language therapist and amateur stage actor who successfully treated , among others , King George VI , who had a pronounced stammer .
Lionel George Logue ( 26 February 1880 -- 12 April 1953 ) was an Australian speech therapist , scientist , and stage actor who successfully treated King George VI , who had a pronounced stammer .