John Keating is a passionate and unconventional English teacher portrayed by Robin Williams in the film Dead Poets Society. He inspires his students to appreciate poetry and seize the day, encouraging them to think for themselves and challenge societal norms. Keating's teaching methods are unorthodox, often leading to conflict with the conservative school administration. His character embodies the spirit of creativity and individuality, leaving a lasting impact on his students, who learn to embrace their own voices and pursue their dreams despite societal pressures.