Tabitha St. Germain voices an impressive number of characters. Even in one show alone, she’s going to be talking to herself at some point. In My Little Pony: Friendship is Magic, she’s Rarity, Princess Luna, Granny Smith, Derpy, Photo Finish, and more. Even in past Gens, she played a Pony; in G3 MLP, she played Minty. St. Germain has some history with fellow cast members in other shows.
In Hamtaro, St. Germain was Pashmina, known as Mafura-chan in Japanese. Other MLP actors with her include Cathy Weseluck (Spike) as Snoozer, Chantal Strand (Diamond Tiara) as Bijou, and Chiara Zanni (Daring Do) as Hamtaro.