The secret past CHRISTOPHER WALKEN doesn’t want you to know! SHOCKING VIDEO

Before Walken attained fame in “Annie Hall” as Diane Keaton’s kill-crazed brother, he had already been officially introduced to moviegoers in “The Anderson Tapes” a heist caper that starred Sean Connery.

While we’re all familiar with the “more cowbell" jokes, his malevolent menace and cool song and dance style, Walken has a hidden past.

RONNIE Walken.

That’s right – Ronnie.

That’s the name the budding young thesp was using in a rare ep of the classic New York TV police drama “Naked City.”

Shot on location, which was rare in the early 1960s, Walken appeared with guest star Eddie Albert and series star Paul Burke in the classic ep  ”Robin Hood and Clarence Darrow, They Went Out with the Bow and Arrow" from 1963.

Not only is Walken clearly recognizable but he must have been working hard with acting coaches because his now-famous nasal twang just isn’t there.

Luckily, a Youtube user, not one to mess around, shot these historic Walken scenes onto video right from his TV.

So without further ado, we present RONNIE WALKEN.