Sindri and Brok are essentially a comedy duo, so it makes sense to cast them together. Nick Frost and Simon Pegg have a history of providing comic relief in the midst of zombie attacks and alien invasions, so they could fit God of War’s tone well.
Either that or just cast Danny Devito as Brok and you’re set. Might as well say Charlie Day as Sindri and make it an It’s Always Sunny in Philadelphia crossover.
Honestly, God of War could just raid the cast of Vikings for most of its roles. The show’s Ragnar is nothing like Baldur, but Travis Fimmel certainly looks the part and has the chops to play a very different character.
The Expanse creators are involved in the God of War show, so why not dip into the pool of incredible actors from that show? Cara Gee steals every scene she’s in as Camina Drummer, and her searing intensity could make for an interesting take on Freya.
Like Freya and Kratos, Atreus’ voice actor has plenty of onscreen experience as well. Sunny Suljic already has the look and the voice for the part, and his appearance in The Killing of a Sacred Deer shows he can handle intense material.
If it’s not Suljic, finding an age-appropriate Atreus could be one of the God of War series’ biggest challenges. Jacob Tremblay is about the right age, and after Room, it’s clear he could stand up to the show’s intense subject matter.
It’s honestly hard to imagine Kratos sounding like anyone but Christopher Judge, his voice actor in the game. He’d obviously be great at capturing Kratos’ energy, but he’s said 2018’s God of War was delayed for him to get major surgery, so he may not be up for the part’s physical aspects.