He could be a decent stand in.
Fans of Martin Scorsese's Oscar-winning film The Departed will know that Leonardo DiCaprio's undercover cop Billy Costigan is almost like a son to Jack Nicholson's brilliantly unhinged criminal kingpin Frank Costello.
It seems that there's a rat in the Buzzfeed crew after they managed to uncover this image of Nicholson posing with his son Raymond.
It must be said that he does bear a striking resemblance to the Blood Diamond and Wolf of Wall Street star. FYI, he also doesn't have an Oscar...
Here's a closer look at the two men side-by-side...
Coincidence? Or does this prove that Jack was sowing his wild oats further and wider than even we'd assumed?
