How old were the actors in Crocodile Dundee (1986)?

When a New York reporter plucks crocodile hunter Mick Dundee from the Australian Outback for a visit to the Big Apple, it's a clash of cultures and a recipe for good-natured comedy as naïve Dundee negotiates the concrete jungle. He proves that his instincts are quite useful in the city and adeptly handles everything from wily muggers to high-society snoots without breaking a sweat.