Character's name: "The Doctor"
Birthday: 10/15/1992
Birthplace: Nyarugenge, Kigali, Rwanda
Biography:
Massaro Ncuti Gatwa (born October 15, 1992) is a Rwandan-Scottish actor. He rose to prominence as Eric Effiong on the Netflix comedy-drama series Sex Education, which earned him a BAFTA Scotland Award for Best Actor in Television and three BAFTA Television Award nominations for Best Male Comedy Performance. In 2022, Gatwa was announced as the fifteenth incarnation of the Doctor on the BBC series Doctor Who, making him the first black actor to headline the series.

Character's name: "Ruby Sunday"
Birthday: 06/19/2004
Birthplace: Tameside, Greater Manchester, England, UK
Biography:
Amelia Eve Gibson is an English actress. She is known for portraying the roles of Indira in the CBBC television series Jamie Johnson and Kelly Neelan in the ITV soap opera Coronation Street. For her portrayal of Neelan, Gibson won the British Soap Award for Best Young Actor in 2022. On 18 November 2022, Gibson was announced to be joining the cast of Doctor Who as new companion Ruby Sunday.