<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> 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>
how old is ian from shameless season 1
how old is ian from shameless season 1
15
15