The unnamed driver appears to be a light purple fish who wears a small white hat. He also appears to be driving on a gurney in a pipe-like object.
Role in episode
The unnamed driver is seen trying to run SpongeBob over along with Divin' Bell Dale and Blow Torch. However, SpongeBob gets out of the way and the unnamed driver, Divin' Bell Dale, and Blow Torch end up crashing into a lifeguard's boatmobile.