<Tr> <Th> Grandmothers </Th> <Td> Joan Dallimore </Td> </Tr> <Tr> <Th> Nieces </Th> <Td> Katie Maguire </Td> </Tr> <P> Ian Gallagher is the third oldest Gallagher sibling and is aged 15 at the beginning of the first series in 2004 . He is the son of Monica Gallagher (Annabelle Apsion) and Gary Bennett, revealed when his blood group was found to be incompatible with the rest of his siblings' . His half - brothers are Phillip "Lip" Gallagher (Jody Latham), Carl Gallagher (Elliott Tittensor), Liam Gallagher (Johnny Bennett) and Sean Bennett, and his half - sisters are Fiona Gallagher (Anne - Marie Duff), Debbie Gallagher (Rebecca Ryan), and Stella Gallagher (Nikita Brownlee). He has one niece, Katie Maguire, who is the daughter of Lip . He used to work at The Jockey as a barman but in more recent series his employment, if he has any, has not been shown . </P> <P> In the early series, Ian is depicted as closest to his brother Lip, with whom he shares a room, and is initially the only member of his family to know that he was gay . The brothers often have to look out for each other more than any of the other characters, due to being party to each other's secrets . In later series, all the family, except his adoptive father Frank Gallagher (David Threlfall), are aware of his sexuality . </P>

How old is ian from shameless season 1