She is played by Arabella Morton.
San Andreas Edit
Mallory and Ray are on a kayaking trip together. At one point, due to the water, Mallory falls out of the kayak, and Ray is unable to save her. Since she is not saved in time, Mallory drowns. Ray, Emma and Blake mourn, and Ray feels like it was his fault, despite the truth, and what Emma tells him. Both Blake and Mallory had once received a heart-shaped pendant each one Christmas, and Blake wears Mallory's pendant as well as her own as a tribute to her.
Mallory was a smart and loving girl.