Dolzzo

is a Blue Demon that served Gloxinia and participated in the Great Fight Festival.

Appearance
Quazzo is a blue demon, a giant, bird-like creature with muscular physique. Blue Demons arms resemble wings and they have coxcomb-like features on their heads. Compared to some other blue demons, Dolzzo has a large sized and build body.

Great Fight Festival arc
Dolzzo is teamed up with Calzzo to fight against Meliodas and Ban.

After trying in vain to defeat the duo, Dolzzo is inadvertently killed by Meliodas when he kicks Ban into the demon.