Tally Cat is the main protagonist of Interactive Math Journey, instead of Reader Rabbit who is absent from the game. She is a young kitten who wears a blue color and backpack and goes on a big math journey to Magic Math Mountain with her best friend, Mat and their guide, Pop, to find the Math Magician. In the end, Tally gets to be the Math Magician by getting dressed in a black cape and top hat and she recites a poem about math.