She is best known for her voice acting role as young Kiara in The Lion King II: Simba's Pride.
[3] Horn is also known for her voiceover work as young Kiara in The Lion King II: Simba's Pride.
Her voice can be heard in Lion King-related merchandise such as software, plushes, toys, and video games.
Horn costarred with Bruce Willis in the 2005 feature Hostage as Jennifer Smith and appeared on Loving Annabelle as Kristen.
Horn was cast as Sophie in the UK animated television show Dodo in 2021 which also starred Dylan Llewellyn, Mark Watson, Connor Swindells, Kadiff Kirwan, Akiya Henry and Ricky Wilson.