Thranduil

As all of you know, Gollum has a rather fascinating arch to go through and his alliance to Shelob or his period of imprisonment in Thranduil's, etc but it is early still - so early in fact that to reveal more would tie our hands and be counterproductive.

Peter Jackson and Guillermo del Toro Chat Hobbit With Fans « FirstShowing.net 2008

It's not particularly likely that Bloom's services would be required for "The Hobbit" as Legolas has no role in the original story, though it's always possible that the actor could play Thranduil, Legolas 'father who appears as the Elvenking in the story.

Orlando Bloom Would Be Willing To Return As Legolas In ‘The Hobbit’ » MTV Movies Blog 2010

He gave them a deep bow and said "Legolas Greenleaf, son of King Thranduil of Mirkwood."

GINNY BATES ON HALLOWEEN Maggie Jochild 2007

I bet all the women out there want to see a cool heartthrob type but still masculine King Thranduil.

Doug Jones Eyes Elven King Role For ‘The Hobbit’ » MTV Movies Blog 2008

Known simply as the ElvenKing throughout "The Hobbit," Thranduil gets into it pretty fiercely with Thorin over the Arkenstone, a fight that isn't resolved until, well, until his son Legolas and Gloin's son Gimli become friends during the events of "Lord of the Rings."

Doug Jones Eyes Elven King Role For ‘The Hobbit’ » MTV Movies Blog 2008

Unfortunately, I can't really see him as King Thranduil cuz wasn't Legolas played by Orlando Bloom in LOTR?

Doug Jones Eyes Elven King Role For ‘The Hobbit’ » MTV Movies Blog 2008

Would Doug Jones as King Thranduil be inspired casting or what?

Doug Jones Eyes Elven King Role For ‘The Hobbit’ » MTV Movies Blog 2008

There was also a strange Elf clad in green and brown, Legolas, a messenger from his father, Thranduil, the King of the Elves of Northern Mirkwood.

The Fellowship of the Ring Tolkien, J. R. R. 1965

How came the folk of Thranduil to fail in their trust? '

The Fellowship of the Ring Tolkien, J. R. R. 1965

Battle under the trees in Mirkwood; Thranduil repels the forces of Dol Guldur.

The Lord of the Rings Tolkien, J. R. R. 1954