Gavin Koopa is Tara Koopa's best friend. He looks like Iggy but has green hair like larry's, two teeth and green shell.
Super Mario Bros 3[]
Gavin dressed up as Iggy and stole the Grassland King's magic wand. Then he gave it to the real Iggy.
Super Mario World[]
Gavin made the walls close in the Morton battle and tried to make Morton black with the shades. Then Morton knocked him out the window.
Mario is Missing![]
Gavin doesn't appear in the game, but Larry mentions him.
Hotel Mario[]
Gavin dresses up as Iggy in the final battle, because the real Iggy actually was sick with the flu.
Yoshi's Safari[]
Gavin was also stuffed with Iggy in the Robo-Blooper without being seen.
Mario and Luigi:Superstar Saga[]
Gavin dressed up as Larry, because the same thing that happened to Lemmy also happened to Larry.
New Super Mario Bros Wii[]
Gavin made the platforms move in the second Iggy battle because Kamek Koopa just made them look colourful. A rock fell in the underground exit, so Gavin died there without air, food and drink instantly
.