Nah, Chalk's voice doesn't have the gravitas for Odin, in my opinion. That's part of why I liked him as Optimus Primal so much--his voice wasn't super-imposing like Peter Cullen as Optimus Prime, which fit Primal's less idealized character well. I think Chalk could do pretty well with Volstagg, actually. It'd give him an opportunity to be a little more humorous and boastful than most of his roles.
Newman would be great as Hogun or Heimdall.