Matteusz Andrzejewski Matteusz Andrzejewski ( born 1999 ) was a student at Coal Hill Academy in 2016 . He was gay and as a result experienced conflict with his deeply religious Polish parents , ( TV : " For Tonight We Might Die " , " Nightvisiting " ) although he was close to his grandmother , who called him " Matti " . ( TV : " Detained " ) Biography . When he began learning English , he would read books in the language , including a book about a place called Narnia , at his mother ' s suggestion . ( TV : " Detained " ) In 2015 , Matteusz visited his grandmother in Poland for her birthday , with his father , and finally admitted his homosexuality to her . She had always known , but wanted to hear it from him . ( TV : " Detained " ) In October 2016 , Matteusz accepted Charlie Smith ' s invitation to join him as his date for the Autumn Prom . He survived the Shadow Kin attack on the night of the prom , and was among the few students who met the Twelfth Doctor . ( TV : " For Tonight We Might Die " ) According to Charlie , Matteusz was grounded when a dragon monster was attacking the school . ( TV : " The Coach with the Dragon Tattoo " ) Matteusz ' s body was taken over by Steve Hopley , with two other " joyriders " taking over April and Tanya ' s , to kidnap Charlie and Miss Quill , using the alien body - swapping technology stolen by Garry Fletcher . James Banks , who was controlling Tanya , threatened to kill Matteusz ' s body in order to coerce Charlie and Miss Quill into following them to the alien machine and fixing it . Matteusz was eventually returned to his body . ( PROSE : " Joyride " ) He was thrown out of the house by his parents for his relationship with Charlie . ( TV : " Nightvisiting " ) He subsequently lived with Charlie and Miss Quill . ( TV : " Nightvisiting " , PROSE : " What She Does Next Will Astound You " ) On his first night staying there he admitted to Charlie that he loved him , and the pair ended up having sex . After Charlie saw his parents due to the Lankin ' s influence , he helped Charlie and Miss Quill defeat the creature , discovering on the way to Tanya Adeola ' s flat that every time he severed part of the creatures roots they immediately reattached . ( TV : " Nightvisiting " ) Following Tanya ' s request , Matteusz with the others went to check what was wrong with an old stone house . When April was knocked unconscious , he dialled 999 to call an ambulance . During his second visit to the house , Matteusz was attacked by Charlie ' s doppelganger , which turned into dust from the touch of real Charlie . Later that evening , Matteusz and Charlie were completely cocooned in spiderwebs by the female bone spider . They were released by DC Carpenter . ( PROSE : " The Stone House " ) In an effort to understand human Internet culture , Charlie posted pictures of Matteusz nearly nude . Matteusz was greatly upset by this , especially because he did not know Charlie had even taken the pictures , and did not forgive him until the next day . ( PROSE : " What She Does Next Will Astound You " ) He became interested in the ornate box in Charlie ' s room , and asked him about it . Charlie showed him the contents of the Cabinet of Souls , and explained the legends of his people that the box could be used as a weapon to kill or possess a whole race . Matteusz didn ' t like this as it would lead to a genocide . This upset Charlie . He was the first of the Coal Hill defenders to notice the killer petal s that were appearing around the school and how they were increasing in number . He went with Charlie to April ' s house just in time to see her travel to the Underneath . ( TV : " Co - Owner of a Lonely Heart " ) When Miss Quill and Dorothea Ames took Charlie and him to their house in order to persuade Charlie to use the Cabinet of Souls to kill the petals , Ames pulled a gun on Matteusz to motivate Charlie . Matteusz was adamant that using the weapon was mass murder , but surreptitiously texted Tanya " Shadow kills petals " , having realised that the Shadow Kin could be used to kill the petals . Whilst Charlie was arming the device , Ames had turned her back to Matteusz and he used that to his advantage and knocked Ames out , remarking that he really didn ' t like guns . After Charlie disarmed the weapon , Charlie confessed that he might have lost what made him him ; Matteusz told Charlie that if he was ever lost , Matteusz would find him . ( TV : " Brave - ish Heart " ) He was placed in detention by Quill to get him out of the way , when a meteor brought the classroom he and the others were in into no - time , no - space . He was the first to notice the meteor that contained the Prisoner embedded in the wall . When he touched the meteor he confessed that he was afraid of Charlie as well as loving him . This upset Charlie but he managed to bring him round using a story from his youth . Later Ram had a confrontation with him , as Ram , affected by the Prisoner , thought that Matteusz had some weird sexual fetish being into an alien . When Charlie had a panic attack Matteusz had to calm him down . He got concerned when Charlie said that he wanted to used the Cabinet of Souls to destroy the Shadow Kin , but discovered that it was Charlie ' s love for Matteusz that stopped him . Charlie killed the Prisoner , bringing the class back to Earth . Quill revealed to Charlie and Matteusz that she had had the arn inside her head removed , restoring her free will , and said that things were going to change around there . ( TV : " Detained " ) Quill immediately fainted in front of Charlie and Matteusz afterwards , and they realised she was heavily pregnant . ( TV : " The Metaphysical Engine , or What Quill Did " ) He moved out of Charlie ' s house following the events in Class B3 , and spent the week sleeping in his cousin ' s car . He came back to talk to Charlie about their relationship and how he hadn ' t stopped thinking about him during the week they were apart . After Charlie heard that Corakinus was back , Matteusz went with him to April ' s house and learnt that Corakinus had planned him to be the fifth person to die after Ram ' s father . Following Charlie , who tried to get the Governors to help in their plight , he was then captured by Corakinus to be used to get Charlie angry . He was released when April decided to go with Corakinus back to the Underneath . He was shocked when Charlie shot April to become king of the Shadow Kin , and pleaded with him not to use the Cabinet to kill the Shadow Kin . ( TV : " The Lost " )