|David Tennant and Michael Sheen as a rather odd couple...|
'Confirmed to be joining Sheen and Tennant in the cast are Adria Arjona (Anathema Device), Nina Sosanya (Sister Mary Loquacious), Jack Whitehall (Newt), Michael McKean (Shadwell), Miranda Richardson (Madame Tracy), Ned Dennehy (Hastur) and Ariyon Bakare (Ligur).'
It looks good. Note that Hastur is in there, in a big shout-out to the deeply weird. If you don't know the book, now might be a good time to read it.