Ingrid Oliver, better known to Whovians as the scientist Petronella Osgood, has been busy setting the record straight when it comes to Doctor Who lingo.
Radio host Dan Clark got a little tongue-tied when asking her about the show. In fact, he was speaking in a totally different Dalek (sorry).
Attempting to ask Oliver whether she’d featured alongside several different Doctors, he settled for the phrase: "Have you cross-whoed?"
Oliver then proceeded to school Clark in Whovian etiquette, telling him that “cross-whoing” is most definitely “not a thing”.
In answer to Clark’s question, Oliver revealed that she had starred opposite four different Time Lords: John Hurt, David Tennant, Matt Smith and Peter Capaldi.
To which Dan Clark exclaimed: “Four Whos!”
You can’t knock the guy for trying.