Osteogenesis imperfecta

Osteogenesis imperfecta (OI), commonly known as brittle bone disease, is a group of genetic bone disorders. People with OI do not produce enough good quality collagen to produce healthy, strong bones. Collagen is an important protein and without a good enough supply the bones are weak and break very easily.

Noted people with osteogenesis imperfecta

• American actor Michael J. Anderson according to these sourceshttp://www.mulholland-drive.net/cast/michael.htm, http://movies2.nytimes.com/gst/movies/filmography.html?p_id=1584&mod=bio, http://www.imdb.com/name/nm0027199/bio. Also has Achondroplastic Dwarfism
• British actress Julie Fernandez
• Jazz pianist Michel Petrucciani
• British actor Nabil Shaban

Historical figures whose OI status is disputed

• Viking chieftain Ivar the Boneless
• French artist Henri de Toulouse-Lautrec (more often diagnosed as having a mild form of Osteopetrosis, but pyknodysostosis and Maloteraux-Lamy have also been suggested)