Very few actors have the laid back charisma of Mark Ruffalo. The American actor is one of the few guys in Hollywood to ostensibly fly under the celebrity radar, while striking the delicate balance between prestige flicks and hugely successful blockbusters.

While you can currently see Ruffalo in our own John Carney's whimsical and generally lovely, Begin Again, a campaign has started on Twitter for the actor to play the iconic TV detective, Columbo, in a role made famous by the late Peter Falk.

Why? Because he's Mark Ruffalo, deadly, and er, kind of looks like him in Zodiac.