Snail Snail is a recurring background character in the animated series Adventure Time. This small, brown snail is known for its subtle appearances in almost every episode, often waving at the audience. Although it does not speak, Snail Snail plays an important role in certain storylines, most notably as the accidental catalyst for major events, such as releasing the Lich. The Snail is beloved by fans for its consistent cameos and hidden presence throughout the series.