The star says the special approach to the show from producer Warp Films, co-creator and writer Jack Thorne and director Philip Barantini, meant that he was "the most zen as an actor I've ever been."

Adolescence is a hard-hitting new series which throws the spotlight on how our children are being influenced online and what the consequences are. Written and created by Stephen Graham and Jack Thorne,

John Lithgow is stepping into two iconic roles—one new, one old. The legendary actor joined Variety for an episode of “Know Their Lines” and confirmed he will be playing Albus Dumbledore in HBO’s upcoming “Harry Potter” series and also revealed he’ll be returning to “Dexter” as the Trinity Killer. When it comes to the former …