She is the first child of Louis and Carol Wilson, and the older sister of Adrian and Troy. However, she appears less often in the series than her two brothers.
Sam is an average teenage girl. She first appears asking Troy where did he put her nail polish. Troy digs it out of his drawer, telling her he was using it to attract aliens. Sam snatches it from him and walks out of the room.
Sam wears a collar shirt and a blouse. She has three bracelets on each of her arms and black socks with normal shoes. Her hair is similar to that of her aunt Maureen McReary-Wilson, but it is curled instead of straight.
A name in navy indicates a returning character from the original series. A name in teal indicates a new character introduced in this series. A name in italics indicates a character that will not make frequent appearances.