|Portrayed by:||Ted Knight|
The Fisherman once discovered the location of the secret Aquacave and planted an explosive device there in hopes of killing Aquaman and Aqualad. Luckily, their pet walrus, Tusky was able to sniff it out in time. During the crisis, the Fisherman launched an attack on Atlantis with a drone ship that fired a sonic canon. He managed to crack the dome before the Aquaduo were able to defeat him ("Where Lurks the Fisherman!").