The Greek-born star died from natural causes on 27 August (11). Details of his death have only just emerged.
He made his first appearance onscreen as an extra in 1952 comedy Monkey Business with Marilyn Monroe and Cary Grant.
Minardos also appeared in films including Istanbul with Errol Flynn, Twelve Hours to Kill with Barbara Eden and It Happened in Athens with blonde bombshell Jayne Mansfield.
He was also cast in several hit TV shows such as The Twilight Zone, Perry Mason, Mission: Impossible and The A-Team.
Minardos was also the subject of filmmaker Owen Prell's documentary Finding Nico, according to Variety.com.