Sabrina Veronica Ingram
16 y.o. during season 1, then older up to 19, college student, lives in a seaside town in Wales with her little step sister, dad and step mother.
Robert Liam Ingram
Sabrina's twin brother, a New York boarding school student.
Laura Brandie Ingram
10 y.o.during season 2, then older up to 13,, Sabrina's and Robert's step sister.
John Philip Ingram
Sabrina's and Robert's step brother.
Rosemary Patrick Linewood
16 y.o. during season 1, then older up to 19, Sabrina's and Robert's best friend.
Steven Arthur Fay
18 y.o. during season 1, then older up to 21, hacker, left his parent's home in London when he was 15.
Dominic Vincent Burns
About 18-19 y.o. during season 1, then older up to 21-22, probably from Nottingham.