Gavin joined the Newsround team in 2007 as a replacement for Thalia Pellegrini.
Thalía | Thalia | Thalia Zedek | Tassilo Pellegrini | Carlo Pellegrini | Aldo Pellegrini | Thalia (plant) | Thalia Pellegrini | Nicola Pellegrini | "The painstaking Irishman"
As depicted by "Ape" (Carlo Pellegrini | Thalia (muse) | Thalia Mara | Thalia geniculata | Thalía (English album) | Santissima Trinità dei Pellegrini | Nicolino Pellegrini | Ines Pellegrini | "Hull". Caricature by Carlo Pellegrini | Giovanni Antonio Pellegrini | Federica Pellegrini |
Birkbeck as caricatured by Ape (Carlo Pellegrini
Jenkinson as caricatured by Ape (Carlo Pellegrini
Forster as caricatured by Ape (Carlo Pellegrini
As caricatured by Carlo Pellegrini
Alongside Lizzie Greenwood-Hughes, Thalia Pellegrini and Adam Fleming, Horne was part of the bulletin team and the main reporter.