It is interesting one, I mean Conan's accent. I just never associated Arnie's Austrian accent with the literary character, but still a fan of Arnie's Conan, the first movie, and it is iconic.
REH's Cimmerians are supposed to be proto Celtic.....proto Gaelic to be precise. On the other hand the fact that they existed thousands of years before recorded history would also mean that their accent would be different to say modern Irish or Scot's Gaelic.
Far removed times and influences, Cimmerians would have spoken something related to Celtic/Gaelic languages as opposed to English with English/Latin influences.
Both Arnie and Momoa have given their own own interpretation of Conan, look and accent ( or lack of accent ).
Boot, I almost find myself in agreement with you on this one.
Interestingly enough Momoa appeared as a part Irish part native American outlaw in Netflix's Frontier.
Momoa is nothing like this character and will fuck it up with his usual wooden performance.
It's been a while since my last read of Dune, but Duncan didn't have a lot of scenes in that first novel, did he? Duncan had more scenes in later novels in the series.
I know in the SciFi series and David Lynch's film, Duncan's part wasn't that big.
Otherwise, I agree with you. Momoa isn't that great an actor.
Duncan's part isn't large in Dune but it is important. As one of Paul's major teachers and influences he holds an important role. Also as his representative among the Fremen Duke Leto relies on the hope that the Atreides will by judged by Duncan's behaviour and abilities. I can't imagine Momoa's ham slap grin and smug expression endearing him with the Fremen. His water would be claimed for the tribe before the coffee was served.