Ernyey absolved the University of Theater and Movie Art in Budapest after doing his A-level at Toldy High School.

Afterwards he played classic and modern roles, just as musicals in the VIG-Theater in Budapest for nine years.

1989 he released his first book, the autobiography Az álmok veszélyes dolgok, which was published both in Hungary and Germany.

Ernyey mostly operates in Hungary since 2005, where he participates in reality and cooking shows, but can also be seen as an actor at the broadcasts RTL Klub and TV2.

2015 Ernyey was designated as an honorary member of the Europäische Kulturwerkstatt (European cultural workshop).