14Elias Koteas - Duncan
Elias Koteas had a breakout role in Some Kind of Wonderful, playing Duncan, the skinhead whom Keith befriends in detention. (Duncan famously shows Keith a drawing of what his girlfriend would look like without skin.) The actor avoided all the cliches of cinematic punks, giving Duncan an appealingly off-kilter comic
sensibility. The guy was charismatic beyond words. John Hughes was reportedly so impressed that he added additional scenes for the character into the script.
The role put Koteas on the radar of pretty much everyone in Hollywood. He has become an A+ character actor over the years, bringing his talents to a wide array of film and television projects. Some of his most notable big screen work has been in the 1990 Teenage Mutant Ninja Turtles film (as Casey Jones), the sci-fi thriller Gattaca, the horror flick Let Me In, David Fincher's Zodiac, and Martin Scorsese's Shutter Island. On the small screen, he has appeared on The Killing and, currently, as a regular on Chicago P.D., where he plays undercover detective Alvin Olinsky. Later this year, he can be seen alongside Kate Mara and Ellen Page in the drama Mercy.