Tabitha St. Germain, also formerly known by the alias of Paulina Gillis, is an American-Canadian actress and voice actress who is best known for providing the speaking voices of Pucca and Ring Ring in the Canadian television series, Pucca, and RarityPrincess Luna and Granny Smith in the Hasbro Studios television series My Little Pony: Friendship is Magic. She has made the transition from stage work to voice work, and has since become one of the core female voice actresses working with Ocean Productions in Vancouver, British Columbia, Canada. As Paulina Gillis, she won a Dora Award in 1995 for her performance in Assassins, the Stephen Sondheim musical.

Aside from Pucca, her other Disney roles include Nokama in Bionicle 2: Legends of Metru Nui and Bionicle 3: Web of Shadows, and Auriana, Amaru, Aunt Ellen and Carissa in LoliRock.