Janine Foster Janine Foster ( previously Brown ) was an American archaeologist and the mother of Peri Brown , a companion of the Doctor during his fifth and sixth incarnations . She and her first husband , Paul Brown , were married on 21 November 1962 . ( AUDIO : " Peri and the Piscon Paradox " ) Their only child , Peri , was born in 1966 . ( AUDIO : " The Reaping " ) She was a Baptist ( AUDIO : " The Council of Nicaea " ) and a fan of Elvis Presley . ( AUDIO : " The Eye of the Scorpion " ) Although their main residence was the Fell ' s Point neighbourhood of Baltimore , Maryland , USA , ( AUDIO : " The Reaping " ) her profession required her to travel extensively around the world . ( PROSE : " Blue Box " ) Paul was killed in a boating accident in 1979 . ( PROSE : " Synthespians™ " ) and Janine married another archaeologist , Professor Howard Foster , ( TV : " Planet of Fire " ) who already had two children of his own . ( PROSE : " Shell Shock " ) She was on holiday with her daughter in Lanzarote in May 1984 when she met the octogenarian Dominique van Gysegham , who remained a good friend until their deaths . ( TV : " Planet of Fire " , AUDIO : " The Reaping " ) During that holiday , on 9 May 1984 , Peri met the Fifth Doctor and Vislor Turlough as well as the shape - shifting android Kamelion , controlled by . Kamelion assumed Howard ' s form and later that of the Master himself before seizing control of the TARDIS to take her to the planet Sarn to meet the real Master . Turlough decided to return to his homeworld , Trion , and Peri joined the Doctor on his travels , ( TV : " Planet of Fire " ) travelling with him for several years in his fifth and sixth incarnations . ( TV : " Mindwarp " ) Janine was deeply concerned by her daughter ' s sudden disappearance in Lanzarote and wrongly accused Howard of being at least partly responsible for it . This led to the collapse of their marriage . When Peri returned to Baltimore in September 1984 in the company of the Sixth Doctor , having learned of the recent murder of her best friend Kathy Chambers ' father Anthony Chambers , Janine was incensed that she had spent the previous five months ( from her perspective ) travelling with " some guys " whom she had met on Lanzarote without even phoning once to let her know that she was alive . She accused Peri of thinking that the world revolved around her and of being irresponsible . Peri was greatly upset when she overheard Kathy saying that things had been better for everyone when Peri was away and even more so when Janine agreed with this assessment . ( AUDIO : " The Reaping " ) Several months later , Janine and Mrs van Gysegham were accidentally killed by Kathy Chambers . Kathy activated a piece of Cyberman technology which had a self - destruct mechanism that activated in the event of tampering . Their deaths led Kathy to move to Brisbane , Australia with her quadriplegic brother Nathaniel Chambers . There , she met the Fifth Doctor in September 2006 . ( AUDIO : " The Reaping " , AUDIO : " The Gathering " ) Peri , who had briefly left the TARDIS , rejoined the Doctor . She had nowhere else to go after her mother ' s tragic death and Kathy ' s sudden disappearance . ( AUDIO : " The Reaping " ) Peri had an aunt named Mona who was still alive in 2009 . She lived in a trailer park and collected golliwogs which she ordered from England . She dressed in a manner reminiscent of the Sixth Doctor . Given that Peri did not specify whether Mona was a maternal or paternal aunt , it is unclear if Mona was Janine ' s sister or her sister - in - law from her first marriage . ( AUDIO : " Peri and the Piscon Paradox " )