Yoko Littner is a pivotal character in the anime series Tengen Toppa Gurren Lagann. Known for her exceptional sharpshooting skills, Yoko is a courageous and determined warrior who joins the main characters, Simon and Kamina, in their fight against the oppressive Beastmen and the Spiral King's tyranny. She is instantly recognizable by her vibrant red hair, signature bikini top, and oversized rifle. Yoko's character adds depth to the series through her strong will, intelligence, and caring nature, which often provides guidance and emotional support to her teammates.