Sculptor and writer, born in Budapest, Hungary, to professional parents, his mother a psychoanalyst, a student of Sigmund Freud who later sat to Lambda for the portrait in the Freud Museum. Lambda studied medicine; sculpture in Paris and Prague; then after some success exhibiting moved to London in 1938. During World War II he worked for the Crown Film Unit and wrote propaganda scripts for the BBC. After the war joined Imperial Chemical Industries, engaged in industrial design, notably with the new material Perspex, in which he sculpted. Made a fine head in bronze of the Labour politician Aneurin Bevan, then concentrated on theatrical personalities, including Laurence Olivier, Claire Bloom, Christopher Fry, Terence Rattigan and Wendy Hiller.