He was the Original and BEST “Jason Bourne” AND the original John Blackthorne in “Shogun”!
He was in the “Three Musketeers”, he was also in one of my Mum's faves “The Thorn Birds”, an Aussie movie, back when it was rarer to have big name American actors doing Australian films.
He was even Alan Quartermain in two movies, a poor rival to Indiana Jones, but one with a lot more pedigree.
I always thought he looked a bit too “Prety” back in the day, in a sort of alien, elvish way, I mean, LOOK at him, Total elf:

But I fondly remember him.
He even did a voice in the Thundercats.