Ferris Boyle

"This is my equipment! Mine! I have every legal right to use it or not use it as I see fit. I say this project ends NOW!"

- Boyle to Dr. Victor Fries before unknowingly turning him into Mr. Freeze. Ferris Boyle is the secondary antagonist of the highly-acclaimed episode "Heart of Ice" of Batman: the Animated Series.

Heart of Ice
Ferris Boyle is the wealthy CEO of Gothcorp who falsely promotes himself and his company in a positive light publicly, and was nominated for Gotham's "Humanitarian Industrialist of the Year" award. However in reality, Boyle was a ruthless, greedy and heartless man who has no qualms in sacrificing innocent lives for the sake of money.

A year before the episode took place, he broke into the lab of Victor Fries with guards to stop his unauthorized experiment which he had ordered to be stopped weeks earlier as it was putting him in three million in debt, despite Fries reasoning that the experiment was the only chance to save his wife. Seeing that Boyle can't be reasoned with, Fries pulled a gun on him. Ferris managed to talk him down, claiming he had lost his temper and they could discuss this. Then when Fries put his guard down, Boyle kicked Victor Fries into a batch of chemicals, causing them to react. Panicking, he and his guards ran, leaving him to die just for using his company's equipment without authorization. Fries survived, but was severely mutated by the substances and transformed into Mr. Freeze.

Now, on a vendetta against Boyle, Freeze steals various parts from Gothcorp in order to construct a cannon that can produce massive amounts of sheer cold. As Batman attempted to stop him, he finds the tape that revealed Victor's loss and Boyle's corruption, afterwhich Freeze captures him and traps him in his hideout.

He then uses his weapon to attack the Gothcorp building and confronts Boyle at the Gothcorp Humanitarian Party, freezing him up to the waist. As Boyle begs for his life. Mr. Freeze gets ready to freeze him completey so he can see that same pathetic face for eternity, until Batman confronts Freeze at the party, fighting him one-on-one until he breaks Freeze's helmet with a flask of chicken soup. Freeze is defeated, and arrested along with Boyle, as Batman presented evidence of Boyle's crimes to the press and leaves him half encased in ice, saying "Good night, Mr. Humanitarian." He likely went to prison after he was exposed.

Comics
In the comics, Boyle wanted revenge on Mr. Freeze for losing everything, but he got killed.

Cold, Cold Heart
Ferris Boyle makes an appearance as the true main antagonist, as well as being the one responsible for the events in the Batman: Arkham Origins DLC; Cold, Cold Heart. He's also responsible for Mr. Freeze's condition. At first Boyle appeared to be a humanitarian, but in reality, he's a stone-cold and unethical sociopath involved in illegal as well as dangerous weapon manufacturing.

In the end, Boyle is stopped by Batman and arrested by the GCPD.

Trivia

 * Ferris Boyle was voiced by Mark Hamill in the Animated Series. The producers liked his performance so much that they replaced Tim Curry, who was supposed to play The Joker, with him, partially because Tim Curry's portrayal was too scary for kids. The Joker became Hamill's most iconic role, next to Luke Skywalker.
 * In Batman: Arkham Origins, Ferris Boyle is voiced by Stephen Tobolowsky, who played Happy Chapman in Garfield the movie.