Hulse, who had been nursing a hip problem, ruled himself available to face the in-form Hornets.
The news came as a great lift to Kevin Blackwell after it was earlier confirmed that Richard Cresswell requires another knee operation.
David Healy is now available again after suspension and Ian Moore could start against Watford after he appeared as a second-half substitute at Derby.
Robbie Blake also confirmed he would be okay for the game as well after a niggly injury.
Meanwhile, Frazer Richardson is slowly coming back to full fitness following a hamstring injury.