I. Martin, Dean BrE AmE
(1917–95) a US singer and film actor, known especially for the humorous films he made with Jerry ↑ Lewis . He was a member of the ‘Rat Pack’, a group of Hollywood stars which included Frank ↑ Sinatra and Sammy ↑ Davis Jr.
II. Martin, Sir George BrE AmE
(1926–) a British music ↑ producer (=the person in charge of the recording process) who worked for many years with The Beatles, and helped them to achieve new and original sounds on records such as Sgt Pepper's Lonely Hearts Club Band (1967)
III. Martin, Steve /stiːv/ BrE AmE
(1945–) a US film actor, writer, and producer who often appears in humorous films such as Roxanne (1987), LA Story (1991), and Shopgirl (2004)