Did you know how many set of famous twins there are? Here are a few:

Alex and Michael Bronstein, co-inventors of 3D face recognition technology
Alice and Nelly Clarke (born 1900), oldest twins in Britain
Allen and Albert Hughes, American directors (1972-)
Ann Landers (1918-2002; born Friedman) and Abigail Van Buren (1918-; born Friedman), American advice columnists
Anthony (1926-2001) and Peter Shaffer (1926-), English playwrights
Apollo (god of the sun) and Artemis (goddess of the moon, hunting and fertility), son and daughter of Zeus and Leto
Barbara and Jenna Bush, daughters of George W. Bush (1981-)
Benny and Billy McGuire, heaviest ever twins at 814 and 784 pounds. Born in Hendersonville, NC, USA in 1947. Billy died in 1979, Benny in 2001
Castor and Pollux, the Gemini twins, aka the Dioscuri
Claire and Ann Recht, tallest living female twins, at 6′ 7″
Daniel and Espi Dooley, heaviest conjoined twins, born in Australia, 8.56 kg.
David (1965-2004) and Brian Reimer (1965-2002), identical twin subjects of the book As Nature Made Him by John Colapinto
David Tom and Nicholle Tom (1978-)
Deidre and Andrea Hall (1947-)
Eric and Corey Warren, Canada’s heaviest twins at birth, at a combined 17.9lbs.
Gin Kanie and Kin Narita (born 1892), oldest twins in Japan and national icons, died 2001 and 2000 respectively
Giovanni Ribisi and Marissa Ribisi (1974-)
Helen of Troy and Clytemnestra, twin sisters of Castor and Pollux
Hunter and Scarlett Johansson (1984-)
James and Thomas Mollekin, Britain’s tallest twins
Jill and Jacqueline Hennessy (1968-)
John (191301985) and Roy Boulting (1913-2001), English filmmakers
Julius (1909-2000) and Philip Epstein (1909-1952), American screenwriters
Kian and Remee Hodgson, twins genetically bon from biracial parents – one is dark and one is light skinned
Lave and Kusha, twins of Lord Rama and Sita
Leigh and Leslie Keno, furniture experts, Antiques Roadshow appraisers, (1957-)
Mark and Michael Polish, American writer-directors
Mark and Scott Kelly, first astronaut twins
Mary Crombie, longest-lived person born a twin (1890-2003), sister died at 94
Mary-Kate and Ashley Olsen (1986-)
Michael and James Lanier, tallest living male twins, at 7′ 6″
Romulus and Remus, mythical founders of Rome
Rosie (1892-1970) and Jenny Dolly (1892-1941), American vaudeville performers
Ross (1925-1975) and Norris McWhirter (1925-2002), compilers of the Guinness Book of Records
Thomas and Grace Houghton-Burnett (born 2002), heaviest mixed sex twins born in the UK (Thomas 10 lb 1 oz or 4.56 kg – Grace 8 lb 2 oz or 3.69 kg); also heaviest twins born via normal delivery in the UK