Claire Danes and Richard Gadd both flirted with madness in high-profile acting duets this season. On “The Beast in Me,” veteran actress Danes played writer and grieving mother Agatha Wiggs, whose journalistic instincts get tripped by her new, threatening neighbor (Matthew Rhys). And on “Half Man,” writer-director-star Gadd’s follow-up to the sensation “Baby Reindeer,” it’s Gadd who plays the threat as Ruben, a musclebound tough guy who haunts the life of his childhood acquaintance Niall (Jamie Bell) into adulthood. Stream the full #ActorsOnActors episode now on the CNN app at the link in bio. — CREDITS Photographs by Mary Ellen Matthews maryellenmatthewsnyc Prop styling and art direction: Shawn Patrick Anderson/Acme Studios acmebrooklyn Assistant prop styling: Joseph Bell josephbellproduction