Something special about Colin
Perhaps the most disturbing look-alike comparison yet, the frizzy hair, beady eyes, perky Irish nose... Colin Farrell has a mesmerizing similarity to Rosie O'Donnell.

100% ganked from fourfour's fantastic post on Terrence Malick's film The New World - This is why the Earth has colors

Previous disturbing celebrity look-alikes:
Jake Gyllenhaal and K. D. Lang
Ellen Degeneres and Owen Wilson
Ashlee Simpson and David Lee Roth