Jasper fed on human blood before joining the Cullen family and has the most difficulty controlling his thirst. The Cullens live on animal blood, which they jokingly refer to as a "vegetarian" diet. Alice is described as pixie-like and lithe, sometimes gracefully pirouetting about. She’s also vivacious, loves planning extravagant parties and attempts to help Bella dress more fashionably.
Age: Jasper’s physical age is 20; he was born in 1843. Alice’s physical age is 20, but she was born in 1901.
Special Abilities: Controlling emotional climates, by way of helping Bella calm down, is Jasper’s expertise. Alice can see the futures of humans and vampires based on the decisions they make. Because of Alice’s foresight, she immediately accepts Bella as her friend and treats her like a sister.
The Past: Before turning into a vampire, Jasper served in the Confederate States Army in the Civil War. Alice, on the other hand, has no recollection of her human memories. She finds out she was confined to an asylum for her premonitions. When she foresees meeting Jasper, she sets out to find him. The pair fall in love and seek out the Cullens through Alice’s visions.