When classic Batman villain Ra's al Ghul finally arrives on "Gotham," neither the character nor the audience will know what to make of him.

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"I really tried to be as ambiguous as possible," "Game of Thrones" alum Alexander Siddig, who was announced in the role last month, told Digital Spy. "I've only done two episodes and as an actor in episodic television, I don't know what the next script is, so I'm confronted with finding a way to play something really dark in a more ambiguous way."

Ra’s will be introduced on the Fox drama as Bruce Wayne (David Mazouz) pulls the veil of the Court of Owls to discover the man pulling its strings. Leader of the League of Shadows, the enigmatic and powerful Ra’s Al Ghul will quickly prove himself to be Bruce’s most dangerous adversary yet.

"I really tried to get him so ambiguous that he's almost liquid – that was the way I thought about it," Siddig continued. "You're really not sure if he's good or bad – no one knows whether he's a demon or a saint, or a ghost, that's a line from the script."

Created by Julius Schwartz, Dennis O’Neil and Neal Adams, Ra’s Al Ghul debuted in 1971 in DC Comics' “Batman” #232, and went on to become one of the Dark Knight’s most enduring rogues. The father of Talia Al Ghul and grandfather to Bruce Wayne’s son Damian, aka Robin, Ra’s has appeared frequently over the decades, not only in comic books but across animation, video games and live-action film and television. He was notably portrayed by Liam Neeson on the big screen in “Batman Begins” and “The Dark Knight Rises.”

Now on hiatus, "Gotham" resumes its third season Monday, April 24, at 8 p.m. ET/PT on Fox.