Kelsey Hooper Kelsey Hooper ( later called Cousin Ceol and Sojourner Hooper - Agogô ) was the first schoolmate that Maria Jackson met on Bannerman Road . Later , Kelsey joined Faction Paradox and became the president of PROTEC . Biography . As a child in 2008 , Kelsey approached the Jacksons and became Maria ' s first friend when she noticed the moving vans on Bannerman Road . Almost immediately , she suggested they go into town on the free Bubble Shock ! bus ; the bus made a mandatory stop at the Bubble Shock ! factory , where she and Maria met the Archetype . Kelsey was briefly held prisoner by Mrs Wormwood and used for her knowledge of Sarah Jane Smith . After leaving the factory , she warned Sarah about an attack from Davey and discovered Mr Smith in the attic . Maria later described Kelsey as " backtracking like mad — saying there ' s no such thing as aliens " . ( TV : " Invasion of the Bane " ) They were still friends when Maria met Uvlavad Kudlak , ( PROSE : " Warriors of Kudlak " ) and they kept in touch after Maria moved to the United States . Several years later , the two drank lager together on the South Bank of the Thames . ( PROSE : " Now or Thereabouts " ) Before Kelsey ' s nineteenth birthday , ( PROSE : " Party Kill Accelerator ! " ) her dreams were haunted by visitations from her clingy ex - boyfriend Ryan , a priest with an exploding glass face . Desperate to get rid of him , she joined Faction Paradox and was assigned the name " Ceol " . She auditioned against several other Little Siblings for the rank of Cousin in a " " - style challenge overseen by Godfather Starch . Eventually , she beat Little Brother Dominic , became a Cousin , and used her shadow - weapon to kill Ryan . ( PROSE : " Now or Thereabouts " ) When she was eighteen years old , Kelsey joined Theo Possible in the Zona Obscura Festival . Jimmy the Mandrill invited her to help him kill Iris Wildthyme , but Kelsey refused ; later , she killed him . Upon her leaving the festival and being reunited with the Faction , Theo gave Kelsey his record box , and Kelsey joked that she could be called " Ms Funky Pair O ' Decks " . ( PROSE : " Party Kill Accelerator ! " ) Since no one deserted the Faction and lived , Cousin Ceol decided she had to die . Over a long period of time , she hid tiny slivers of her biodata , filtering out all elements tainted by the Faction and selecting pieces small enough not to arouse suspicion . All the while , she hid herself behind a " devoted acolyte " persona . ( PROSE : " Weapons Grade Snake Oil " ) Ceol found a dodgy , backstreet cosmetic clinic on an insignificant posthuman colony that was scheduled to die in a burst of freak solar flare s . She customised the clinic ' s genetic printer to weave her a new body from the stolen biodata and , once that was performed , she uploaded her consciousness to the new body a few hours before the flares hit . The shell of Cousin Ceol was left with the devoted acolyte persona , and she promptly signed up for a mission to Mohandassa during the House Military incursion , where she was inevitably lost . Cousin Chantelle said that the mission must have even impacted the histories of Ceol ' s ancestors and descendants . In the new body , " Sojourner Hooper " barely escaped the planet as a refuge in the last transport ship . She then moved to Pluto , where she married Rex Agogô , formed a cymbiont bond with L - Event , and led a rebellion against the Company , after which she was elected the new president of PROTEC . However , she was blackmailed into joining Christèmas ' plan to sabotage the Chance Coteries , where she discovered her rebellion had been puppet - mastered by Scacia De Ren . ( PROSE : " Weapons Grade Snake Oil " ) After death , she and L - Event were resurrected in the City of the Saved , where she became Lady President of one of the factions during the City ' s Civil War . She ignored a message from Dominic . ( PROSE : " A Hundred Words from a Civil War " ) Appearance . As a child , she wore a pink velour trackie . ( PROSE : " Now or Thereabouts " ) When she was eighteen , she had afro hair , braided and tied back , and wore orange waterproofs . ( PROSE : " Party Kill Accelerator ! " )