Avery Cornell

 was a houseguest on Big Brother 1.

Avery is well remembered for being the Traitor in Big Brother 1. She entered the house with a secret. If she was able to make it to the Final Two, she would win the winner and Runner-Up prize ($550,000 in total) without a jury vote. Before her secret was revealed, she bonded well with her housemates, and even was apart of a six-person alliance that ruled the first three weeks of the game. Avery won the second HoH, with a plan to backdoor Sam for being quiet, and not trusting that. She was successful in her attempt. Avery then played both sides for the remainder of the pre-jury phase, not showing her true loyalties. In Week 4, the Traitor Twist was revealed, and Avery started scrambling. Avery managed to skate by until Samantha nominated her in Week 8, and Avery was evicted in eighth place and became the fourth member of the jury.

Trivia

 * Avery is the first female to win Head of Household in Big Brother 1.
 * Avery is the first ever person to implement the backdoor strategy in Big Brother.
 * Avery never called it a "backdoor", but the name was coined around the house, so that's the name that stuck.
 * Avery is the first ever person to be the traitor in Big Brother
 * Avery was the first ever female juror.