Did any famous people have angelman syndrome?

No. As is a genetic disorder due to dysfunction of a gene (ube3a) on chromosome 15. Patients have developmental delay, problems with movement/balance, happy/excitable personality & problems with speech. See: www.Angelman.Org. The children of some famous people have been diagnosed with as: sons of actor, colin farrell, author, ian rankin, baseball player, dave henderson, & hockey player, peter mcduffe.