Costas Mandylor was 21 in Hostage Syndrome when he played the character 'Andrei Arbitovich (as Costa Mandyflor)'.
That was over 36 years ago in 1988.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 58, and has starred in 93 movies in total, 89 of those since Hostage Syndrome was released.
In Hostage Syndrome, I think Costas Mandylor looks: