Mark Sennen was born in Surrey, but spent his formative years in rural Shropshire where he learnt to drive tractors and worm sheep. He has been a reluctant farmer, an average drummer, a failed Ph.D. student and a pretty good programmer. He lives with his wife, two children and a rather large dog, beside a muddy creek in deepest South Devon. He is the author of the DI Charlotte Savage series, plus the standalone thriller The Sum Of All Sins.
Michael Wahr is an Australian film, television and theatre actor based in Melbourne. On stage he has starred as Shakespeare in Shakespeare in Love for Melbourne Theatre Company, Jonathan Harker in Dracula for Shake & Stir Theatre Co. and Heathcliff in Wuthering Heights for Australian Shakespeare Co. His screen credits include Grisse (2018), City Homicide (2009) and Neighbours (2004).