Katie Christopher was a Human female who lived during the 20th and 21st centuries. She was born in 1998. (TOS short story: "Assignment: One") The only daughter of Shaun Christopher and Debbie Lauderdale and the granddaughter of John Christopher, she had two brothers, Kevin and Rory. Following her father's marriage to Alice Fontana in 2021, she gained two half-siblings, one of them being James Kirk Christopher-Fontana. In 2020, Katie was attending college and sent her father an e-mail while he was going to Saturn aboard the USS Lewis & Clark. (TOS novel: The Rings of Time)