Droopy is a dog character with a deadpan voice. He was created by Tex Avery and Michael Lah for MGM. William Hanna and Joseph Barbera produced seven theatrical cartoons with the character, starting with "Grin and Share It" (1957) and ending with "Droopy Leprechaun" (1958).
His catchphrases include "Hello, all you happy people," and "You know what? That makes me mad!"