Kiki Koster is a Dutch voice actress.
Some of Koster's roles include:
Anime
- Dinosaur King - Helga
- Sailor Moon - Zoisite/Shingo Tsukino
- Additional voices in Glitter Force
Live-Action TV
- Wizards of Waverly Place - Theresa Russo
Western Animation
- Postman Pat - Sara Clifton/Sarah Gilbertson/Sylvia Gilbertson
- Steven Universe - Emerald/Nephrite
- Total Drama - Eva
- Totally Spies! - Sam Simpson
- Winx Club - Mirta/Daphne/Ms. Griselda
- Additional voices in Braceface, Sabrina: The Animated Series, SpongeBob SquarePants
Tropes and trivia
- Acting for Two: In Postman Pat, she voices three characters; Sara, Sarah (yes, they're different people), and Sylvia.
- Crossdressing Voices: In Sailor Moon, she voices Shingo, who is male.