Professor Screweyes (simply known as Screweyes) is the main antagonist in the 1993 animated film by Universal Pictures, We're Back: A Dinosaur's Story. He is the evil twin brother of Captain Neweyes and the founder of a scary modern-day traveling carnival known as the Eccentric Circus (also known as Professor Screweyes's Eccentric Circus). This self-proclaimed "Master of Fear" is also the inventor of Brain Drain, a drug which has the opposite effect of the Brain Grain and it drains the intelligence of, and devolves, anyone who uses it, and of the Fright Radio, a radio-like device that is the opposite of the Wish Radio and it transmits the signal, soundwaves, and imagery of all people and creatures through nerves, paranoia, and (most of all) fear.