Sagaxus, more commonly known as Sagax, was a young badger who appeared in Triss. He was the son of Hightor and Merola. Two of his best friends were a hare named Scarum and an otter named Kroova.

When he was younger, he was described as a troublemaker, and ran off with his friends Scarum and Kroova on a ship. Ultimately, the trio made it to Redwall Abbey to aid Trisscar Swordsmaid. He wielded an axe, which was originally owned by the Freebooter,Captain Plugg Firetail.