Scooby-Doo.

About Scooby-Doo

Scoobert Doo, more commonly known as Scooby-Doo, is an American cartoon character and the titular main protagonist of the eponymous animated television franchise created in 1969 by the American animation company Hanna-Barbera. He is a male Great Dane and lifelong companion of amateur detective Shaggy Rogers, with whom he shares many personality traits. He features a mix of both canine and human behaviors and is treated by his friends more or less as an equal. Scooby often speaks in a rhotacized way, substituting the first letters of many words with the letter 'r' a speech pattern that, while never fully explained, is understood and accepted without question by those around him. His catchphrase is "Scooby-Dooby-Doo!"