Neil Gaiman Creator, Executive Producer Michael Sheen Aziraphale Actor David Tennant Crowley Actor Jon Hamm Gabriel Actor Sam Taylor Buck Adam Young Actor Jack Whitehall Newton "Newt" Pulsifer Actor Michael McKean Sergeant Shadwell Actor Miranda Richardson Madame Tracy Actor Adria Arjona Anathema Device Actor Nina Sosanya Sister Mary Loquacious Actor Ned Dennehy Duke of Hell Hastur Actor Ariyon Bakare Duke of Hell Ligur Actor Nick Offerman U.S. Ambassador Actor Anna Maxwell Martin Beelzebub Actor Mireille Enos War Actor Steve Pemberton Mr. Glozier Actor Niamh Walsh Greta Kleinschmidt Actor Chris Sussman Executive Producer Rob Wilkins Executive Producer Douglas Mackinnon Executive Producer Simon Winstone Executive Producer