Why be you, when you can be new?
~ Phineas T. Ratchet's catchphrase

Phineas T. Ratchet is the secondary antagonist of Robots. He is Rodney Copperbottom's arch-nemesis and an Madame Gasket's son and henchman. He hates Rodney trying to bring Bigweld back to life and tries to kill Rodney for that.