B P Walter

B P Walter is the Sunday Times bestselling author of twelve twisty psychological thrillers, including The Dinner Guest, The Garden Party, The Locked Attic, The Winter Visitor and The Handsome Stranger. His new festive mystery The Christmas Guest publishes in autumn 2026. Born and raised in Essex, England, he spent his childhood and teenage years reading compulsively, he worked in bookshops then went to the University of Southampton to study Film and English. He is an alumnus of the Faber Academy and formerly worked in social media coordination.

His novel The Dinner Guest was a Number 1 Times Bestseller and a Sunday Times Top 10 bestseller. His most recent novel is The New Boyfriend, with The Christmas Guest coming in autumn 2026. He has also written a fantasy horror novel, Scuttle, under the name Barnaby Walter and a gothic thriller, Medlock, as S G Hartnell.

You can follow B.P. Walter on Instagram: @bpwalterauthor and Facebook: BPWalterAuthor