Why This Whitelighter?
Rupert Evans plays Whitelighter Harry Greenwood in this version. An academic type prone to wearing cardigans and occasionally mentioning Roxane Gay, he's more similar to Giles on Buffy the Vampire Slayer than the original's strapping Leo Wyatt (and is therefore probably less likely to be a love interest for these sisters).
"I think he has a bit more about him, I hope," Evans said at TCA in regards to the Buffy comparisons. "And I think the writers and the team and everyone's been very been very encouraging about what we're going to do with the Whitelighter and with Harry in the forthcoming season."