I know this may seem stupid but here me out..Supernatural was a great show and i think should use the cast from Supernatural in the Amazon TV Show..
Alona Tal as Diana Prince/ Wonder Woman
Misha Collins as Steve Trevor
Jared Padalecki as Hercules
Lauren Cohan as Fury
Jim Beaver as Zues
Amanda Tapping as Athena
Villains:
Jake Abel as Ares
Emily Perkins as Circe
Ian Mcshane (The only non Supernaterial cast member) as Hades