Jessica is Brad Garrison's rookie partner. She is charged with watching the monitors for information on the person/people responsible for the outbreak. Like Brad, she is distrustful of Frank West, and patronizes him for being a civilian. However, she grows to trust Frank after he manages to retrieve the medicine from the food mart manager. Jessica would later be bitten by an infected Dr. Barnaby and becomes a zombie by the final hours of the game. She kills two Special Forces soldiers in her zombie form, and is found by Frank wandering the security room.
She is playable in the iOS version of Dead Rising.
- In the initial Dead Rising beta trailer, Jessica runs through the maintenance tunnels, presumably being chased by zombies. Then a bloody Jessica sits against a wall as Frank takes a picture of her, hinting that she was originally supposed to die much earlier in the story.
- When Jessica asks Frank if he knows how to use a gun, Frank utters his famous line; "I've covered wars, you know!". This line (which has become a meme) is considered the most famous line in the series and has been referenced both within the series and in general pop culture.