Suggestions by @tomzillawash3r3

Larry Ward

as Treebeard in The Hobbit + The Lord of the Rings Trilogy (1980's)

Tom Woodruff Jr.

as Balrog of Moria in The Hobbit + The Lord of the Rings Trilogy (1980's)

Ken Dodd

as Tom Bombadil in The Hobbit + The Lord of the Rings Trilogy (1980's)

Nicol Williamson

as Thorin Oakenshield in The Hobbit + The Lord of the Rings Trilogy (1980's)

Tony Jay

as Sauron in The Hobbit + The Lord of the Rings Trilogy (1980's)

Orson Welles

as Sauron in The Hobbit + The Lord of the Rings Trilogy (1980's)

James Earl Jones

as Smaug in The Hobbit + The Lord of the Rings Trilogy (1980's)

Paul Scofield

as Denethor in The Hobbit + The Lord of the Rings Trilogy (1980's)

Madeleine Stowe

as Arwen in The Hobbit + The Lord of the Rings Trilogy (1980's)

David Prowse

as Witch-King of Angmar in The Hobbit + The Lord of the Rings Trilogy (1980's)

Sam Neill

as Faramir in The Hobbit + The Lord of the Rings Trilogy (1980's)

Tim Curry

as Gríma Wormtongue in The Hobbit + The Lord of the Rings Trilogy (1980's)

Burgess Meredith

as Bilbo Baggins in The Hobbit + The Lord of the Rings Trilogy (1980's)

Peter Cushing

as Saruman in The Hobbit + The Lord of the Rings Trilogy (1980's)

Robert Picardo

as Gollum and Smeagol in The Hobbit + The Lord of the Rings Trilogy (1980's)

Sting

as Legolas in The Hobbit + The Lord of the Rings Trilogy (1980's)

Jim Henson's Creature Shop

as Special Effects Studio in The Hobbit + The Lord of the Rings Trilogy (1980's)

Tippett Studio

as Special Effects Studio in The Hobbit + The Lord of the Rings Trilogy (1980's)

Industrial Light & Magic

as Special Effects Studio in The Hobbit + The Lord of the Rings Trilogy (1980's)

Jim Henson and Frank Oz

as Special Effects in The Hobbit + The Lord of the Rings Trilogy (1980's)