Hugo is Penelope's dragon father who one served Gothel for many years.
Hugo is the father of Penelope and wants her to be a real dragon, fearless and terrifying. When he flies in Gothel's manor, Penelope gets afraid, because she can't do what he wants. Still, Penelope loves him and, when Rapunzel discovers a secret entrance, Penelope persuades her to come back because she doesn't want Gothel to punish Hugo.
When Gothel discovers that Rapunzel tends to run away from the tower, she punishes Rapunzel and enchains Hugo for not keeping her inside the tower. Penelope informs Hugo that Rapunzel saved him by coming back when she was able to go and not come back. She did this because if she hadn't, Gothel would have punished Hugo badly. Hugo tells Penelope that Gothel's spell shouldn't work on Rapunzel, because she hasn't been lying. Rapunzel escapes the tower, and, along with Penelope and Hobie, comes to the enchained Hugo and thanks him. Hugo then accepts Penelope's friendly personality and calls her a mighty dragon, then telling her to fly over the magic wall.
When Gothel was defeated, Hugo's magic chain disappeared, and when Gothel asked him to get her out of the manor,he told her it was impossible, as Gothel was the prisioner with the lying heart.
At the end, Hugo and his daughter moved with Rapunzel and Stefan to their own palace and kept the palace warm in the winter.
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