Hot Dog Prince is the gender swapped counterpart to Hot Dog Princess.
He is a hot dog who possesses some canine-like aspects to his look, including a muzzle, fluffed ears, and paws that allow him to walk on all fours. However, he still possesses various aspects that keep to his food origin: his tail is a bound and tied like a sausage link and, according to Fionna, he "smells of old hot dog water." He is much larger than his Hot Dog Knights, who are regular sized hot dogs (they are also bipedal, unlike him). His voice is high and squeaky.
"Oh, help me, please!"