Yakko Warner is a fictional character from the animated television series Animaniacs, created by Tom Ruegger. He is the eldest of the three Warner siblings, which include Wakko and Dot. Yakko is known for his quick wit, clever humor, and a knack for wordplay. He often serves as the leader of the trio, guiding them through various adventures. Yakko is characterized by his tall, slender frame, and he typically wears a red shirt and a black bow tie. His personality is energetic and mischievous, often breaking the fourth wall and interacting with the audience. Yakko's signature song, "Yakko's World," showcases his ability to name countries around the globe in a catchy tune.