Other stars and fans of Paul have paid tribute on social media today.
Comedian Rob Delaney commented: “Knocked it out of the PARK in Chernobyl. Watching it I consciously thought, ‘Oh, we have a new movie star’.
“Between that & how funny he was in Friday Night Dinner… just unreal talent. Rest in peace, Paul Ritter.”
Channel 4 wrote: “We are so saddened to hear of the loss of one of our favourite actors Paul Ritter. Our thoughts are with his family, friends and colleagues.”
Actress Nicola Coughlan added: “So, so sad to hear this. I was such a fan of Paul Ritter he was absolutely magic, RIP.”