Quink

Quink had learned Quirk was working with a human pirate. An encounter with friendly informer Captain Slade set him after Aquaman. Actually Slade was Quirk’s accomplice and had found a way to work with a second water sprite. 
 
Since Aquaman could not tell the friendly Quisp and hostile Quink apart, he spends much time in the story either confused or knocked out. The addition of the red-haired but also hostile Quirk did little to end his suffering.