Colin Ferguson, who murdered six people on the Long Island Rail Road in 1993. Ferguson was sentenced to multiple life sentences. Ferguson is now housed at Upstate Correctional Facility.
Irish actor and musician Colin O’Donoghue, best known for playing Captain Killian ‘Hook’ Jones on the tv show Once Upon A Time, is a famous bearer of this name.
Colin T. Trevorrow is an American film director and screenwriter. He is known for directing the indie film Safety Not Guaranteed, the blockbuster film Jurassic World, and Star Wars: Episode IX, with the latter being slated for a 2019 release.
While I'm pleased to see that Captain Hair was already mentioned, I'm surprised no one's mentioned the Doctor! And the most colorful one at that. Colin Baker (no relation to Tom Baker), a British actor who received the titular role of Doctor Who after previously appearing as a Time Lord guard named Maxil. He held the role of the sixth Doctor from 1984 to 1986.
Colin Singleton is a child prodigy and the main character of John Green's novel, "An Abundance of Katherines" who dated 19 Katherines and takes a road trip in order to recover from his most recent heartbreak. (P.S. it's a really good read :P )
Colin Creevey is a character in The Secret Garden; he's lived in his bed all his life because everyone thinks he's ill and going to die. There's really nothing wrong with him and eventually he learns to walk and sees the garden.
Colin Creevey is a character in the Harry Potter books, introduced in the second part of the series. He's completely in awe of Potter, and a bit annoying in his admiration.
Famous bearer is Irish actor Colin Farrell. I personally think that Colin is a beautiful and delicate name, it is short and comes out easily, just adorable!