Dr Dennis Decapsule is Wedneswing's scientist. He built a base on the moon and a giant robot with a bird-like head. He is a good friend of Sam and the gang and Syanide Decapsule's cousin. As seen in Episode 1 he has a deep hatred for celebrity scientist Professor Nebulous who took all the credit for Dr Decapsule's moon base. Dr Decapsule ends up fighting him on a roof, the fight finishes when Dr Decapsule pulls out a gun and shoots Professor Nebulous who falls from the building to his death. Dr Decapsule is one of the few townspeople to resist Mr Woo's mind control device in Episode 2 and helps to defeat Johnny Thunder in the season finale by taking on the summoned dragon Bahumut with his giant robot with a bird-like head.