Who Do You Think You Are? (2004)

S12E09 Mark Gatiss

Title: Mark Gatiss Plot: Mark Gatiss, an actor and writer with a deep appreciation for eerie tales, has often pondered the origins of his fascination with the macabre. Upon learning that his maternal lineage stretches back five generations to the rugged landscapes of Northern Ireland, his curiosity ignites. Traveling to Ireland, Mark uncovers a captivating saga of transformation and reveals that his ancestors were not only storytellers but also rumored vampire hunters.