Hugo Harold-Harrison is a voice actor who replaced Rupert Degas from Season 2 onwards in The Amazing World of Gumball. He is currently the voice actor for Rob, Tobias, Alan, Miss Simian, Martin Peaches, Julius, Quattro, Timmy, the Spray-Paint Bottle, Archie the Duck, and many other characters formerly voiced by Rupert Degas.
- Toto le héros (Toto the Hero) (Alfred, as a child)
- Anchoress (Priest's Boy)
- Killing Mum and Dad (Ronnie DeFeo)
- Mr. Nobody (Pool Instructor)
- His Uterus; Her Lover (Hugo)
- The Amazing World of Gumball (Tobias, Alan, Miss Simian, Rob, Martin Peaches, Julius, Quattro, Felix, Newspaper Employee (Season 2), Carlton, Timmy/The Internet, Rocky (season 2), Juke, Human, Archie the Duck)
- Floogals (Boomer)