Blitzo Buckzo (pronounced Blitz) is the founder and manager of I.M.P and is the main protagonist of Helluva Boss.

He is the adoptive father of Loona and a former co-worker and best friend of Fizzarolli during their days as kids in the former's father's circus.

Blitzo is quite tall for his species, though estimates himself as being roughly four feet tall,[10] and sports a harlequin-like aesthetic. He has red skin with white burn marks of various sizes that cover parts of his forearms, chest, and his tail, as well as most of the right side of his face. His irises are red and he has a heart-shaped skull symbol on the center of his forehead.

Blitzo has fairly broad forearms and hands, and a long narrow head, out of which extends large, curved, black and white striped horns. He has black spines on his head and upper back, as well as on his tail. His tail ends with a triangular point that has a black spot at the tip.

He has pointed feet with boot-like heels which are shown to have black on the heels and toe areas. As shown in "The Full Moon", Blitzo has red gums.

Blitzo wears a tattered slate gray collared coat with red buttons down the breast, black knee-high boots matching the shape of his feet, and elbow-length black fingerless gloves featuring large, rounded yellow decorations on the upper side of them. In "The Full Moon", the yellow decoration on his left glove is infused with his own Asmodean Crystal. Blitzo also wears a red skull charm around his neck.

In "Exes and Oohs", Blitzo is shown to wear boxers with horses on them.