EntertainmentTVSci-Fi ShowsDoctor WhoDoctor Who showrunner Russell T Davies sent Jonathan Groff six key episodes to watch ahead of his debutWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. EntertainmentTVSci-Fi ShowsDoctor WhoDoctor Who showrunner Russell T Davies sent Jonathan Groff six key episodes to watch ahead of his debutWhen you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. When you purchase through links on our site, we may earn an affiliate commission.Here’s how it works. (Image credit: BBC) Jonathan Groff may be most familiar to fans of the wildly different Mindhunter andFrozen, but you’re about to see another side to the star in Doctor Who. “Oh my gosh, it’s totally surreal and incredible,” Groff tells us about joining the beloved sci-fi show. “I had heard of Doctor Who, I knew what it was before Russell [T Davies, showrunner] asked me to do it, but I …