Dan Levy opened up about the passing of Catherine O’Hara last night on ‘The Tonight Show With Jimmy Fallon.’ “It’s a collective loss. She was the greatest. She’s irreplaceable. The great comfort to me has been to see how loved she was,” he said of his ‘Schitt’s Creek’ co-star. Not only did Dan and Catherine spend years working together on the Canadian comedy, the late legend has been working closely with Dan’s dad Eugene Levy since the early ‘70s and the two have been close friends since they met at the Second City Theater in Toronto. (📷: Getty, TT/Fallon Tonight) #DanLevy #CatherineOHara #SchittsCreek #EugeneLevy