Yellow Toad (Toad Brigade)
From the Super Mario Wiki
Super Mario series
Super Mario Galaxy
Yellow Toad makes his first appearance in Super Mario Galaxy as one of the members of the Toad Brigade. Out of the group, Yellow Toad seems to be the most careless and lazy Toad in the group, as he is often seen sleeping in the game. He even sleeps in the snow in the Freezeflame Galaxy. At times when he is not asleep, Yellow Toad can be seen as a rather immature character as seen in the Purple Coin challenge in Deep Dark Galaxy, where he is seen dancing under a spotlight while the other Toads stay around the area cautiously.
Super Mario Galaxy 2
Yellow Toad also appears in Super Mario Galaxy 2 for a second time as a member of the Toad Brigade. He can often be found in different galaxies where he can either be found helping Mario or sleeping like in the previous game. He is also one of the many characters that can be found on the Starship Mario. He stands near a Warp Pad that leads to the Toad Brigade's Starshroom.
Super Mario Odyssey
In Super Mario Odyssey, Yellow Toad can be seen running the Crazy Cap store in the Lost Kingdom, Moon Kingdom and the Mushroom Kingdom. Largely contrasting his other appearances, he is always fully awake and does not seem to retain his laziness.
Super Mario Maker 2
Yellow Toad appears in the Story Mode in Super Mario Maker 2. During the first part of the story, he remains asleep to the right of the castle, but part of the way through, he will offer Mario a set of three missions, each of them revolving around completing a level with a stone in hand. With each job completed, Yellow Toad will build an 8-bit sculpture of a different Mario series enemy. Once all three are finished, he tells Mario that he is exhausted and wants to take another nap.
Captain Toad: Treasure Tracker
Yellow Toad reappears in Captain Toad: Treasure Tracker. Much like his previous appearances, Yellow Toad is almost always seen sleeping. His sleepiness is seen to be contagious as he is capable of even making Captain Toad fall asleep beside him if he stands near him. Much like the other Toad Brigade members in this game, Yellow Toad sports a uniform similar to the Captain and a backpack.
However, there are instances in which Yellow Toad aids the Captain and is seen to be fully awake. Such situations involve certain levels where Yellow Toad and the other Toad Brigade members must follow Captain Toad in order to unlock certain bonuses and tools in order to find the Power Star.
Super Smash Bros. Ultimate