This is Poppy's uncle, Big Cat.
Big Cat is Poppy’s stay-at-home uncle who appears in the 2013 Disney film The Poppy Cat Movie: Poppy’s Big Extraordinary Adventure. He is a purple plush toy pussycat man who loves Poppy and takes care of her. He wears a white collar and red necktie. And when Poppy was five, he gives her a new neckerchief and thinks it looks perfect on her. He is voiced by Carlos Alazraqui.