Born in 1946. He is the founder of Skorpió
, where he played saxophone and handled vocals. Frenreisz Károly played in other bands: from 1963-64 in Benkö Diexieland Band and György Vukán Orchester; from 1965-1967 and again from 1969-1970 in Metró; from 1971 to 1973 in Locomotiv GT
; from 1973 to 1985 and again in 1993 in Skorpió
. Frenreisz Károly had minor acting roles in 3 films, which are A Nagy Generáció (1985), Tea (2002) and Magyar Vándor (2004). From 1970 onwards he composed music for several Hungarian films.