Hoot the Owl is an owl from Mario 64. He lives in a tree and carries Mario when Mario wakes him up. He returns in Mario 3D World with the same role, but he comes out of Hoot Blocks instead of trees.

Mario3DWorld
Playable Characters	Supporting Characters	Villains
Mario • Luigi • Toad • Green Toad	Peach • Daisy • Prince Perry • Toads • Fishin' Lakitu • Hoot the Owl • Para-Beetle • Gina	Bowser • Koopalings • Bowser Jr. • Dry Bowser
Yoshis	Baby Yoshis	Transformations
Green • Red • Blue • Yellow • Purple • Orange	Green • Magenta • Blue • Yellow • Red	Small Mario • Normal Mario • Fire Mario • Cape Mario • Balloon Mario • Bandit Mario • Invincible Mario • Invincible Cape Mario
Enemies
Goomba • Goombe • Koopa • Paragoomba • Paratroopa • Paragoombe • Piranha Plant • Ninji • Ninjiina • Beach Koopa • Kamikaze Koopa • Lakitu • Spiny • Venus Fire Trap • Cheep-Cheep • Blooper • Micro-Goomba • Blooper Nanny & Baby Blooper • Hammer Bro. • Boomerang Bro. • Fire Bro. • Ice Bro. • Amazin' Flyin' Hammer Bro. • Winged Goombe • Bandit • Violet Bandit • Monty Mole • Lemming Mole • Deep-Cheep • Cheep-Cheep School • Boo • Big Boo • Eerie • Note Blockhopper • POW Blockhopper • Bombshell Koopa • Boohemoth • Broozer • Booline • Dino-Torch • Dino Rhino • Big Boo • Big Booline • Boolinemoth • Muncher • Nipper Plant • Peppop • Preppop • Para-Peppop • Para-Preppop • Albino Dino • Albino-Torch