Susan Jane Aitchison is an English television actress best known for her role as Susie on Jam & Jerusalem. She is the daughter of June Whitfield

She graduated from the University of Birmingham with a degree in Drama & Theatre Arts. After working extensively in theatre, her mother put her in touch with Jennifer Saunders. Aitchison subsequently worked with Saunders on a French/Saunders Christmas Special, before being offered the part on Jam & Jerusalem. Aitchison also featured in several stage productions and has been praised for her performances. Previously, her body of television work has largely consisted of guest-starring roles on television programmes. Aitchison has also narrated several audiobooks for the BBC.