pearl mackie
Credit: Jeff Spicer/Getty Images

It’s sad to think that Peter Capaldi is leaving the show, but after you read what Doctor Who‘s Pearl Mackie, the woman who plays Doctor’s new openly gay companion, has to say about her character Bill Potts, your heart will be all warm and fuzzy again.

In a recent interview with Vulture, Mackie revealed that her character wasn’t originally written as a lesbian — but one night showrunner Steven Moffat had a revolutionary realization. The actress explained:

It’s all about the ah ha! moments on Doctor Who.

Mackie added:

Before signing onto the hit show, Mackie had only one other TV credit on her resume, so this casting is a pretty, pretty big deal. She said that it didn’t really hit her until she saw the sets and the soundstage when she showed up for work, though.

“I walked on and looked around and was completely overwhelmed with the sheer scale of the show, the intricacies, and the work that had gone into it. It made me feel really humbled by being in such a phenomenally powerful show,” Mackie said.

Yeah, we can imagine that it would be pretty overwhelming, but we’re just as sure she’ll fit right in.