[1][2] Aaltonen was born in Helsinki.
He became known in Finland for his roles as Kalle in the sixties series Hanski and for his role as a gangster in the 1969 comedy film Leikkikalugangsteri.
In the 1960s and 1970s he also did some work as a film and theatre director.
[3] On stage, one of his memorable roles was Zhdanov in David Pownall's Master Class which was given over 200 times at the Finnish National Theatre in the late 1980s.
This article about a Finnish actor is a stub.