Monica is a blonde, naive American girl, headed to a rave with her friends, Max, Katja and Aaron. An intoxicated Josh turns his attention to her while arguing with Kate, causing her to leave. Josh later encountered Monica again with her friends who are excited for the rave. She was later seen panicking after she came across the next train cart filled with the ravaged remains of its passengers. She survives the train wreck, only to be decapitated shortly afterward. She is the first meaningful survivor casualty, and later returns as a puppet-themed boss alongside Max. She alternates between mockery and apology throughout the battle, insisting that the two are being controlled. She and Max were involved, and she (mistakenly) believed he cared about her.