Clara Mullner
Clara Mullner is Alex's deceased mother. During Alex's eight heart event, he states that she died 12 years ago in the summer. When she died, Alex had to move in with his grandparents George and Evelyn, who were Clara's parents.
During Alex's memory of her, Clara is seen holding Alex as a baby and singing to him. She has brown hair, with two blue hair bands, and is wearing a purple shirt.
In the memory, Alex is wrapped in a blue blanket with the letter "A" sewn on it, and has a green pacifier in his mouth.