Dreadhead is a Nighlok monster debuting in the Power Rangers Samurai episode "Day Off". He uses a cowboy-ish accent when he speaks.
He is armed with a shotgun with a blade along its underside. He is immune to almost any physical attack. He attacks whatever he considers pointless to exist in order to send humans into a state of utter despair. But as he can be hurt with energy attacks. Dreadhead was destroyed by Jayden using the Beetle Disc's power with the Fire Smasher Cannon Blaster Mode and then destroyed by the new Beetle Blaster Megazord. Dreadhead is not as smart as most Nighlok; when he was a Mega-monster, he was unaware that he was more vulnerable to energy than physical attacks. In "Party Monsters", he was seen amongst the other deceased Nighloks in Nighlok Heaven, attending their Halloween party while sharing his story against the rangers with them.
- He is voiced by Ross Girven.
- When the camera angle changes to behind Dreadhead, you can see the zipper in the back of the costume used for his suit actor.
- Yanasudare, his Super Sentai counterpart in Samurai Sentai Shinkenger.