Splash, Puddle, and Chib, three companions to Songclan's healer cat. It makes sense that a cat who hates flies and gnats and buzzy insects would have some frog friends. While the spiders stay in the den, Graystorm carries the frogs pretty much everywhere with him.
He found Splash and Puddle together when they had barely just metamorphed from tadpoles to bonafide frogs. They were trapped in a small, quickly drying puddle, Splash couldn't make it to the river with her missing front leg and Puddle didn't seem to want to leave his sister. Otterkit found Chib nearly frozen on the riverbank in early winter and brought him to Graystorm, who thawed him out. The three have been with him ever since.