Tegan Jovanka

Companion of the Fourth and Fifth Doctors. She was an Australian air hostess who met the Fourth Doctor and Adric soon after the Master had killed her aunt, Vanessa. She travelled with him to Logopolis and helped him defeat the Master. She watched the Fourth Doctor regenerate, and fought the Master again on Castrovalva. Afterwards, she helped the Fifth Doctor against Monarch, the Mara (which possessed her), the Terileptils, George Cranleigh, the Cybermen and the Master yet again (disguised as Kalid). She was accidentally left behind when the TARDIS dematerialized in Heathrow, but rejoined the Fifth Doctor and Nyssa in Amsterdam, where she helped them free her cousin Colin and defeat Omega. She then again fell under the Mara's control. Soon afterwards, she met the Brigadier and Turlough (whom she mistrusted) as the Fifth Doctor fought Mawdryn. She aided him in his battles against Terminus, Inc., the Eternals, the Master (disguised as Sir Gilles Estram) and Borusa, during which she teamed up with the First Doctor and met the Second and Third Doctors. She then fought the Silurians and the Sea Devils. When the Doctor took her to visit her grandfather, Andrew Verney, in Little Hodcombe, she was chosen to become the Queen of May, a human sacrifice to the Malus. She fought the Tractators on Frontios, and finally the Daleks. Tired of all the deaths and the violence, she left the TARDIS' crew right afterwards.