Answer
Keith David portrayed Elroy Patashnik in the television series "Community." Elroy was a recurring character, appearing in several episodes throughout the show's six seasons. He was a former member of the study group and a close friend of Jeff Winger, the main protagonist of the series. Elroy was known for his eccentric personality, his love of conspiracy theories, and his frequent use of the catchphrase "I'm not a crackpot."