Why Every Classic Companion Left Doctor Who
5. Janet Fielding - Tegan Jovanka
No matter what Peter Davison may think, Janet Fielding's spiky Tegan was the companion who was best suited to his occasionally huffy Doctor. Fielding was by Davison's side from 1981 all the way to 1984 when she departed at the end of the particularly grueling events of Resurrection of the Daleks.
Fielding's decision to leave the show was influenced by Peter Davison's imminent departure being announced to the press. She decided that, like Frazer Hines and Wendy Padbury before her, she would depart with her Doctor, albeit a few months earlier.
Tegan and the Fifth Doctor were later reunited on-screen in 2022's The Power of the Doctor, via the magic of the Thirteenth Doctor's sentient hologram!