Daxter

Daxter is one of the main characters in the Jak and Daxter series. Along with Jak, he has made a few cameros within the Ratchet & Clank seires, being playable in at least two of them.

Ratchet & Clank: Going Commando
Jak and Daxter are shown on posters throughout Allgon City on Planet Damosel.

Ratchet & Clank: Up Your Arsenal
Daxter makes no appearance in this game, but Planet Daxx is named after him.

Everybody's Golf 4
Since Jak is playable in this game, Daxter is often shown with him.