Yaz (played by Mandip Gill) had her world turned upside down when she met Doctor Who (Jodie Whittaker) in her home city of Sheffield.
Since then, Yaz has joined the Doctor and her two fellow companions, Ryan Sinclair (Tosin Cole) and Graham O’Brien (Bradley Walsh) to battle alien foes.
However, as viewers are only three episodes into the BBC series, they are yet to see the different terrains the Doctor and her new friends will venture to.
Viewers have already been treated to an episode filmed in South Africa when the Doctor was reunited with her Tardis in The Ghost Monument.
As the team return to Sheffield in tonight’s episode, Mandip Gill who plays Yaz has revealed the foursome won’t be staying on home turf for long.
Appearing on This Morning earlier this week, Mandip said: “The episodes that came on Sunday [The Ghost Monument] were in South Africa, we’ve done one in Spain which is yet to come.
“There’s so any places that don’t look like Cardiff – there’s so many different terrains,” the actress teased.
In previous years, the majority of the BBC sci-fi series has been filmed in Cardiff as this is where most of the BBC drama’s are based.
With a new show runner at the helm for the first series featuring a female incarnation of the iconic Time Lord, the series is already breaking new ground.
He said: “We went [to South Africa] for the scale with different landscapes. [We’ve done] a couple of different worlds in South Africa and for variety it was stunning.
Last week, the Doctor and her friends remained on planet Earth however for a journey to the past where they encountered historic figure Rosa Parks (Vinette Robinson), in an episode penned by screenwriter Malorie Blackman.
However, Rosa wasn’t the only character the Tardis crew encountered in Montgomery, United States as they faced off against the evil Krasko (Josh Bowman), who was trying to manipulate the events surrounding Rosa.
The episode entitled ‘Rosa’ gave viewers an insight into the issue of racism in the 1940s and how Rosa refused to move from her seat when a white passenger boarded a bus, beginning a series of boycott’s in the city.
Although Krasko attempted to stop Rosa boarding the bus, the Doctor ruined his plans and the historic events played out true.
One viewer wrote: “Complete blubbering mess at the end of #DoctorWho. Malorie Blackman has created something really special, powerful but not pandering.”
Another added: “One of the best ever episodes of #DoctorWho. V emotional that so many children just learned the story of #RosaParks through such powerful, honest storytelling. This series is better than I even hoped.
“#DoctorWho that episode was goddamn beautiful. I’m welling up,” a third remarked.
Tonight, the Doctor will not only have to face the wrath of Yaz’s family when she returns home, but she will also investigate strange goings on with spiders in Sheffield.
Doctor Who continues tonight at 7pm on BBC One.