Rainwhisker

Rainwhisker is a dark gray tom with blue eyes.

The Darkest Hour
In The Darkest Hour, he is seen as a Rainkit, brother to Sootkit and Sorrelkit. He was trained by Sandstorm in case BloodClan attacked the camp.

Firestar's Quest
In Firestar's Quest, he is Cloudtail's first apprentice, Rainpaw.

Dawn
He becomes good friends with Swallowtail of RiverClan.

Starlight
He went to lick Swallowtail's ears but stopped himself, since the act was awkward among the recently separated Clans.

Twilight
He helped in the fight against the badgers, and in the process, dislocated his shoulder. His brother, Sootfur, died in the fight, and he informed Sorreltail, his sister, about it.

The Sight
In The Sight, it is revealed that he had been killed by a falling tree branch during a storm.