Clyde Fife is Ben Tennyson's cousin who first appeared in Clyde Five.
Clyde is a nice, but clumsy teenage boy who goes by the rule that helping never hurts.
Clyde is fixated on becoming a superhero like his cousin Ben, giving him a "head in the clouds" attitude.
Clyde grew up in rural areas and never saw any cities like Bellwood, and often quotes his mother.
Clyde appears in Clyde Five where he travels to Plumbers' HQ with his grandmother, Vera. Vera wants him to become a Plumber, but Clyde digresses, saying he wants to be a superhero like his cousin Ben. Ben and Rook attempt to convince Clyde that being a superhero isn't easy and being a Plumber is much easier. They then roam around Undertown looking for crime and find Liam attempting to rob a sock cart. Ben, Rook, and Clyde defeat Liam and as a reward the Sock Vendor allows Clyde to take a sock of his choosing. Clyde finds the Mark 5 Nanoshift Enabled Exo-Armor used by Liam to rob the cart and mistakes it for the sock. The vendor lets him keep it, which Clyde later finds out is an advanced piece of machinery, which he then calls the Cincotrix.
Clyde tests out all the powers and modes but accidentally goes into flight mode and destroys parts of buildings and almost injures a few people before landing on the ground. Liam, Thunderpig, and some Techadon robots appear and attempt to take the Cincotrix from him. Clyde deactivates it and puts Liam to sleep while Thunderpig runs away in fear. He then gets the Cincotrix under control and goes to Mr. Smoothy with Ben and Rook who try to convince him to remove it. He shows them that he has control over it and is responsible enough to handle it.
Suddenly, he loses control over the Cincotrix as Liam uses a remote control on it. Clyde then later attacks Ben under the control of the Cincotrix and destroys some Plumber vehicles. Ben tells him to read the manual, which he does and regains control. Later, he goes back to Plumber HQ with Ben and Rook who allow him to keep the Cincotrix. Clyde then decides he wants to become a Plumber like Rook and leaves with Vera.
Powers and Abilities
Though seemingly frail and clumsy, Clyde has some natural ability in controlling his exo-armor.
Amazingly enough, his knowledge of chickens allows him to subdue Liam with little to no effort.
- Clyde Fife has a strong resemblance to Napoleon Dynamite, who shares the same voice actor, Jon Heder.
- According to Derrick J. Wyatt, Clyde has to finish regular school before he could go to the Plumbers' Academy.