India, Oct. 26 -- Walter Koenig, best known for portraying Chekov in the original Star Trek series, has passed away at the age of 90.

According to a statement from Galactic Productions, the actor and writer died at his North Hollywood residence, "surrounded by his daughter and niece."

"Today we mourn the passing of Walter Koenig, whose talent, warmth, and unforgettable performances left a lasting mark on generations of fans around the world. He passed of old age at home in North Hollywood last night surrounded by his daughter and niece," the statement read.

The Hollywood Reporter reported that Koenig died of natural causes, according to his representative.

Koenig made his debut in the second season of NBC's science-fiction series as E...