Full Name: Kelsey Winslow
Ranger Designation: Yellow Lightspeed Rescue Ranger
Weapons: Rescue Blaster, Rescue Claw, V-Lancer, Thermo Blaster
Gear: Rescue Morpher, Battle Booster
Zords: HazRescue Four, Rail Rescue Four, Omega Zord Four
Kelsey Winslow was chosen to be the Yellow Ranger for her exceptional physical prowess. She loves the thrill of extreme sports, including rock climbing, and there's no sport more extreme than being a Power Ranger. She enthusiastically accepted the role as one of Mariner Bay's defenders, and enters every battle looking forward to new challenges and adventures. Kelsey recently reconciled with her grandmother, whose preoccupation with wealth and indifference towards Kelsey drove the two apart.

After the demons were defeated, Kelsey returned to her life in extreme sports, but would be called into action once more when the Lightspeed Rescue Rangers joined forces with the Time Force Rangers to battle Vypra, who returned from the dead.