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Coach Keck is first seen in "Middle Men" when Lincoln and Clyde attend her gym class as part of their middle school orientation. She states that she just buffed the floors for the PTA banquet and is going to show them a movie instead of playing dodgeball. When Lincoln and Clyde accidentally knock the dodgeballs onto the floor and took Lynn's advice not to own up to their mistake, Coach Keck cancels the movie and makes them clean up the dodgeballs.
She is a tall, slim woman. She has short brunette hair, and two pairs of eyelashes. She wears a yellow tracksuit, with white stripes and collar, blue sneakers, and a hat with "RW" on it.