Beloved Northern Irish actor Liam Neeson is best known for his dramatic, emotionally charged film roles, from Michael Collins to Oskar Schindler, and for his renaissance as an action hero playing former CIA operative Bryan Mills in the Taken trilogy.

But all actors have to start somewhere.

During a Tonight Show interview with Neeson, Jimmy Fallon took the liberty to show fans were the brilliant actor began, which is a far cry from where he is today.

Neeson made his debut in a BBC Belfast educational documentary about trains in Northern Ireland, in which he played an entire cast of characters by wearing different costumes and mustaches.

“I’m stumped – I don’t know what to say,” the dumbfounded actor said when Fallon showed this clip of Neeson as a “mustachioed gentleman talking about bathing in the sea”:

A clip from Neeson's debut in a documentary about trains in Northern Ireland; everyone has to start somewhere.YouTube