Yvonne Grundy (born 18 December 1996 in Kenya) is a Kenyan-British actress who provides the voice of Nia in the English dubs for Thomas & Friends. She joined the voice cast in Big World! Big Adventures!.
- Some children (Forever and Ever)
- Thomas & Friends: Big World! Big Adventures! The Movie (2018)
- Thomas & Friends: Big World! Big Adventures! (2018-present)
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