Spewart is a stocky member of the Broodals. Like the other Broodals, he is from the Moon and found in Super Mario Odyssey, specifically in the Wooded Kingdom, Luncheon Kingdom, Bowser's Kingdom, and Dark Side. His name is a pun on "spew", referring to his method of attack, and the male name "Stewart".
He is dressed in a blue suit and wears a white cravat tie, along with a blue hat with a golden spiked ring, and is physically similar to Morton Koopa Jr., while his hairstyle resembles a drooping version of that of Ludwig von Koopa.
Spewart is first encountered in the Wooded Kingdom, where he tells Mario that he and the other Broodals already took the Soirée Bouquet. He attacks by spewing poison around himself, before going after Mario. Sometimes, he spits out a few drops of poison and chokes on it. Mario can clear away the poison using Cappy. Spewart's hat must be knocked off so that he can be stomped on. Each time he is hit, he retreats into his hat and spins around the arena, leaving trails of poison, which disappear after a while or if Mario stomps on the hat. He is defeated after three stomps.
Spewart is fought again in the Luncheon Kingdom, during the mission "The Broodals Are After Some Cookin", where he has stolen a pot of Stupendous Stew. He says he plans to go back to eat the rest of it after he defeats Mario. Unlike the other Broodals, his strategy is unchanged and the only difference is a larger battlefield and that he starts walking slowly towards Mario, even when his hat gets knocked off. Spewart is also found in Bowser's Kingdom, as one of the pilots of RoboBrood.
Spewart's last encounter is on the Dark Side. He says he plans to take the Odyssey after defeating Mario. The fight is the same as the first.
|Major villains||Donkey Kong | Bowser | Foreman Spike | Wart | Koopalings (Ludwig von Koopa | Lemmy Koopa | Roy Koopa | Iggy Koopa | Wendy O. Koopa | Morton Koopa Jr. | Larry Koopa) | Tatanga | Virus | Wario | Kamek | Baby Bowser | Smithy | Big Bob-omb | Whomp King | Waluigi | King Boo | Shadow Mario | Petey Piranha | Bowser Jr. | Cackletta | Fawful | Antasma | Sir Grodus | Lord Crump | Shadow Queen | Princess Shroob | Count Bleck | Dimentio | Pom Pom | Boom Boom | Bowser Soul | Topper | Hariet | Rango | Spewart | Madame Broode|
|Minor villains||Blooper | Bob-omb | Boo | Bullet Bill | Buzzy Beetle | Chain Chomp | Cheep Cheep | Dry Bones | Goomba | Hammer Bros. | Koopa Paratroopa | Koopa Troopa | Lakitu | Magikoopa | Monty Mole | Ninji | Piranha Plant | Pokey | Shroob | Shy Guy | Snifit | Spiny | Thwomp | Whomp | Wiggler|