Susan Castle is a pre-made future Sim living in Oasis Landing, from The Sims 3: Into the Future. She lives with her son Nathaniel, her granddaughter Lexi and the family Plumbot Vroombo. She can be made playable by marrying her, or asking her to move in.
Susan is friends with all of her family members. Like all pre-made Sims from Oasis Landing, she has the Future Sim hidden trait. She has mastered her Advanced Technology skill and has 4 skill points in Laser Rhythm-a-con.