Heffridge Trumpler Brompet Heffalump IV, simply known as Lumpy, is the titular character and one of the two main protagonists in Pooh's Heffalump Movie and in Pooh's Heffalump Halloween Movie and a supporting character in My Friends Tigger and Pooh. He is a real Heffalump discovered by Winnie the Pooh and his friends. Instead of being a nightmare, he is a friendly resident of the Hundred Acre Wood. He is revealed he has an unnamed mother in the movie.
In Pooh's Heffalump Movie and its sequel, he was voiced by Kyle Stanger, while in the TV series My Friends Tigger and Pooh, he was voiced by Oliver Dillon.
Pooh's Heffalump Movie
Winnie the Pooh and his friends thought Lumpy was notorious. Roo (Kanga's son) knows he is friends with him. He soon plays along with him. When Roo shows him to Pooh and his friends, they lock him in a cage. Roo frees him, but Pooh and his friends capture him a second time and trap him in a net. Roo tells them that Lumpy is good, making them realize they misunderstood him, free him, and apologize for what they did.
Immediately afterwards, Roo gets trapped under a piece of wood, and Lumpy calls for his mother to help him, which she does with the help of Pooh and friends. Lumpy then spends the rest of the day playing with Roo.
Pooh's Heffalump Halloween Movie
Lumpy is one of the two main characters in the sequel. He is afraid of a new Halloween monster (Gobloon).
My Friend Tigger and Pooh
Lumpy makes his only 3D appearance in the TV series, My Friends Tigger and Pooh. He is a semi-regular character.