Glimbo was a huge, fat male sea rat mate member of Raga Bol's crew. His distinguishing feature was his eye, which was sightless and milky-white.
When the crew camped in Mossflower Woods, Glimbo captured two stoats, Flinky and Crinktail, who were members of a vermin gang attacking Redwall Abbey. Flinky told them of Redwall, and the crew moved southwest to attack.
When the vermin gang escaped, however, Raga Bol sent Glimbo and the slavemaster, Blowfly, to find them. Both rats were caught and killed by Lonna Bowstripe.