- "That lady has a gun!"
- ―Aidan as he notices Andrea Grinell's weapon.
Under the Dome
On Dome Day, he was vacationing in Chester's Mill, Maine with his mother and sister. After Vera left for Yoder's in Tarker's Mill and was subsequently locked out of the town when the barrier appeared, Aidan and Alice remained alone in their cabin for two days. They eventually decided to leave on the morning of 23 October 2009 and look for their mother, heading in the direction of TR-90, but were found by Jim Rennie, Jr. and Frank DeLesseps when the western side of the town was evacuated for a missile strike. Later Aidan along with Alice are adopted by Cora and Thurston, but after going to listen to Big Jim's speech Cora is shot and killed by Fred Denton who says he believed she was reaching for Andrea Grinnell's gun. This left both of the "dorphans" (which is a combination of the word dome and orphans and used to describe both children) in the care of Thurston. The two children make close friends with both of Linda's children as they spent the night at their house. The next morning Aiden and the others leave to meet Rusty and the others at the farm house on the outskirts of Chester's Mill. By traveling here Aidan survives the propane explosion but later dies of lack of oxygen like his carer Thurston.
Aidan and Junior are shown to have a good relationship, Junior is shown to care deeply about both Aidan and Alice and saves them from starvation. Junior promises them both he'll look after them and as Junior's brain tumor worsens he declares that he will kill anyone in his way as he plans to take Aidan and Alice and protect them himself. Junior is unable to as Jackie Wettington shoots and kills him at the police station.
Aidan and Frankie aren't shown interacting much although they have a positive relationship. Frankie alongside Junior saves Aidan and Alice from starvation, he later finds a milky way bar which he gives the children.
Aidan and Thurston are shown to have a loving bond, after Aidan and Alice are abandoned, Thurston and Cora take them in. Thurston treats Aidan and Alice as if they're his own children, checking they well fed, behaved and safe.
Aidan and Cora are shown to have a loving bond, after Aidan and Alice are abandoned, Thurston and Cora take them in. Cora treats Aidan and Alice as if they're his own children, checking they well fed, behaved and safe. Aidan is shown to be deeeply saddened when Cora is shot and killed in front of him.
Aidan and Alice have a good brother-sister relationship. Alice often watches her brother as she is the eldest and corrects him when he makes mistakes. Alice is obviously deeply saddened by the death of Aiden and her new foster parents Cora and Thurston.