Considering Cheyenne worked on True Detective, maybe they will take a look at Michael Greyeyes (Played the character Brett Woodard) for a role who was also in TD.
Based on his IMDb profile, he has familiarity with Canada.
QuoteHe is Nêhiyaw (Plains Cree) from Muskeg Lake Cree Nation in Saskatchewan, Canada.
They could also take a look at Elisha Pratt who played Michael's son on S03. Ironically Cheyenne was Elisha's brother on the show. Imagine if they were both cast in P5, lol.
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If you go further down the internet rabbit hole, Michael and Elisha also worked together on a film Wild Indian which premiered at the 2021 Sundance Film Festival.