Ron Perlman and Emilio Rivera have also worked together on Sons of Anarchy
Ron Perlman, Jacob Vargas, Emilio Rivera and Bob McCracken all worked on Kurt Sutters Sons of Anarchy.
Faye Dunaway was originally cast as Aunt Val for season 2, in a role that was described as recurring. When the season premiered, the character was played by Linda Gray and appeared on 2 episodes and barely had screentime.
Julian Morris was born in London and naturally has an English accent. His character, Reverend Paul Curtis, is supposed to have an American/southern drawl, but his English accent is noticeable at certain points throughout the series. One instance is Episode 8 at around the 27 minute mark.
Not quite the Hand of God but Ron Perlman played Hellboy whose stone right hand was called the 'Right hand of doom'.