Sharon Davies Sharon Allen , née Sharon Davies , was a companion of the Doctor during his fourth incarnation . Biography . Travels with the Doctor . Sharon grew up in the steel mill town of Blackcastle . Her best friend on Earth was schoolmate nicknamed Fudge Higgins . After hearing reports of alleged UFO sightings , Fudge forced Sharon to search for the shuttle with him . In a shed , the two discovered Beep the Meep . The small alien appeared to be peaceful , and they were convinced that it needed help . They took care of it at Fudge ' s house , unaware that it was being hunted for extreme war crimes . Under the mental influence of his black light radiation , she tried to kill the Doctor . After being cured and seeing the true nature of Beep , she helped him defeat the creature afterwards , the Doctor tried to take Sharon home ( COMIC : " Doctor Who and the Star Beast " ) but the Doctor ' s TARDIS accidentally landed aboard the " Spacehog " , an astro - freighter in the New Earth System , instead of Sharon ' s hometown . The ship was attacked by the Werelox , but the " Spacehog " crew and K9 Mark II overcame them . The Doctor tried attacking Sharon after he transformed into a Werelok , but he eventually found a cure . Sharon visited New Earth , her first planet other than Earth . The Doctor refused to take Sharon with her on board the Dalek battlecraft , after he realised the Dalek s were behind the attack on the " Spacehog " . Sharon stowed away on board the " Spacehog " , not realising it was on a suicide mission to blow up the Dalek ship . Joe Bean sent her off in a life pod , and later picked her up when the Doctor froze the battlecraft in time and space . Because Sharon was having fun , she felt there was no hurry in returning to Blackcastle . ( COMIC : " Doctor Who and the Dogs of Doom " ) Sharon experienced a Retinal Implant Viddy Machine education ( on " The Galactic Crime - Fighter ' s Notebook " rather than " Advanced High School Physics " as the Doctor had intended ) while on board the TARDIS . The TARDIS was ripped into two , and the Doctor and Sharon landed in a blank dimension . The Doctor defeated Brimo , a woman with psychic powers who drew energy from the Doctor ' s dimension , but had to make a trip four years into the future to bring the two halves of the TARDIS together . Due to a malfunctioning chrono - compensator , the trip was instant but both the Doctor and Sharon were aged four years . Sharon had aged more noticeably than the Doctor . ( COMIC : " Doctor Who and the Time Witch " ) Her adventures continued in China in 1522 AD , where stranded Sontaran s were using Shaolin Monk s to fight and retrieve crystals needed to send a distress signal . ( COMIC : " Dragon ' s Claw " ) As the Doctor returned Sharon home , the Doctor , K9 , Sharon and the TARDIS were caught by a teleport beam operated by Varan Tak . Their ship was collecting samples of lifeforms throughout the universe . ( COMIC : " The Collector " ) Her next journey saw her revisiting old friends of the Doctor on Unicepter IV , where she struck up a relationship with Vernon Allen , a professional dreamer who used a Slinth called Miki . When the Slinth were drained and no longer used for dreaming , Sharon decided to start a new life with Vernon , feeling it impossible to return to Blackcastle since she had grown up . ( COMIC : " Dreamers of Death " ) Working against Dogbolter . Sharon was a reporter for the Galactic Broadcasting Corporation in the 82nd century and loathed Josiah W . Dogbolter for his increasing control over all private news media . The Twelfth Doctor recruited her in a plot to bring Dogbolter down . She confronted Dogbolter at his 500th birthday party , warning him all men with tyrannical ambitions have bad endings ; and when Dogbolter was tricked into boasting about his mass murders , Sharon filmed it and broadcast it live on the GBC . Following that , she went to Maxwell Edison ' s birthday party on Cornucopia and danced with Frobisher . ( COMIC : " The Stockbridge Showdown " ) Legacy . Long after Sharon left the Doctor , a facsimile of her was included in a recreation by the TARDIS of the Eighth Doctor ' s friends and allies from its own memories . ( COMIC : " A Life of Matter and Death " )