Katie Gardner

Katie Gardner is a demigod daughter of Demeter and lead counselor for cabin four at Camp Half-Blood.

History
Katie makes her first appearance in The Last Olympian, a member of the Demeter cabin, and its counselor. She knows Percy, Annabeth, and Grover well.

Katie rides on the strawberry trucks along with the rest of the campers from Camp Half-Blood to the Empire State Building, and prepares to defend the city.

She fights bravely for the gods against the Titans. She survives the war and returns back to Camp Half-Blood along with the rest of the surviving campers.

Personality
Katie is very kind and patient, yet passionate and willing to risk her life for the gods. Katie is said to remind Percy of her mother, Demeter, by her bossiness and the way she argues. She dislikes the Stoll brothers (Connor Stoll and Travis Stoll) because they put chocolate Easter bunnies on her cabin's grass roof at Easter time. However, she has grown to be somewhat of a motherly figure to them, scolding them when they do somthing mischievous.

Powers
Katie has the ability to grow and manipulate plants, like all the other members of the Demeter cabin, and like their mother. She uses her abilities in the battle of New York City to grow a near-impenetrable wall of poison ivy and thorn bushes to halter the advances of many monsters.

Relationship with Campers
Katie gets along well with Percy, Annabeth, and Grover. It is revealed in The Last Olympian that the Stoll brothers have somewhat of a rivalry with Katie, ever since they decorated the grass roof of her cabin with chocolate Easter bunnies as a prank.

Film
Katie is not yet cast, and presumably will not be until the film version of The Last Olympian starts production.