Title: Dwarf (Middle-earth)
Content:   In Ralph Bakshi's 1978 animated film The Lord of the Rings, the part of the Dwarf Gimli was voiced by David Buck. In Peter Jackson's live action adaptation of The Lord of the Rings film trilogy, Gimli's character is from time to time used as comic relief, whether with jokes about his height or his rivalry with Legolas. Gimli is played by John Rhys-Davies, who portrayed the character as having a Scottish accent.  In Iron Crown Enterprises' Middle-earth Role Playing (1986) Dwarven player-characters receive statistical bonuses to Strength and Constitution, and subtractions from Presence, Agility and Intelligence. Seven "Dwarven Kindreds", named after each of 
Title: The Hobbit: The Desolation of Smaug
Content: Martin Freeman as Bilbo Baggins: A hobbit hired by the 13 dwarves, on the advice of wizard Gandalf, to accompany them on a quest to reclaim the Lonely Mountain from Smaug. ; Ian McKellen as Gandalf the Grey: An Istari wizard who recruits Bilbo and helps to arrange the quest to reclaim the dwarves' lost treasure in Erebor. ; Richard Armitage as Thorin Oakenshield II: The leader of the Company of dwarves and the true heir to Erebor's throne who has returned to reclaim Erebor from Smaug. ; Benedict Cumberbatch as Smaug (vocal performance/motion capture): An enormous, powerful and psychopathic great dragon of Middle-earth who 
Title: The Hobbit: An Unexpected Journey
Content: Martin Freeman as Young Bilbo Baggins: a hobbit hired by the wizard Gandalf to accompany 13 dwarves on a quest to reclaim the Lonely Mountain from the dragon Smaug. ; Ian Holm, who portrayed Old Bilbo Baggins in The Lord of the Rings trilogy appears also in scenes that take place directly before the events of The Fellowship of the Ring''. ; Ian McKellen as Gandalf the Grey: a wizard who recruits Bilbo and helps to arrange the quest to reclaim the dwarves' lost treasure in Erebor. Gandalf was also portrayed by McKellen in The Lord of the Rings film trilogy. ; Richard Armitage as Thorin Oakenshield 
Title: Hobitit
Content: Taneli Mäkelä – Frodo Baggins [Frodo Reppuli] ; – Samwise Gamgee [Samvais Gamgi] ; – Peregrin Took [Peregrin Tuk] ; Jarmo Hyttinen – Meriadoc Brandybuck [Meriadoc Rankkibuk] ; Vesa Vierikko – Gandalf [Gandalf Harmaa] ; Kari Väänänen – Gollum [Klonkku], Aragorn/Strider [Konkari] ; Ville Virtanen – Legolas ; – Gimli ; – Boromir ; Martti Suosalo – Bilbo Baggins [Bilbo Reppuli] ; – Tom Bombadil ; Leif Wager – Elrond ; Matti Pellonpää – Saruman ; – Barliman Butterbur [Viljami Voivalvatti] The show's cast included the following actors and roles: 
Title: The Hobbit: An Unexpected Journey
Content:  a goblin, named Grinnah, who acted as the Great Goblin's acolyte. ; Michael Mizrahi as Thráin II: the last Dwarf-King of Erebor and Thorin's father. ; Benedict Cumberbatch as the voice of the dragon Smaug, as well as The Necromancer, a mysterious sorcerer residing in Dol Guldur with the ability to summon the spirits of the dead. Cumberbatch provided performance capture for the character's brief appearance in this film. The characters of Galadriel, Saruman, and Frodo Baggins appear in the novel The Lord of the Rings, but not in the novel The Hobbit. (Radagast was also dropped from the film version of Lord of the Rings, 
Title: The Hobbit (film series)
Content:  portraying The Necromancer as well. Billy Connolly joined the cast in February 2012 as Dáin II Ironfoot. Connolly said of his character "...this guy will terrify the life out of you. I have a mohawk and tattoos on my head." John Bell plays Bain, Manu Bennett plays Azog, Craig Hall plays Galion, Ben Mitchell plays Narzug, John Rawls plays Yazneg, Stephen Ure plays Fimbul and Grinnah, Kiran Shah plays a goblin scribe, and Stephen Colbert was cast in an undisclosed cameo. Conan Stevens was to play Bolg, but he eventually played a Gundabad Orc, also known as Keeper of Dungeons.
Title: Bilbo Baggins
Content:  Bilbo is played by Ian Holm, who had played Frodo in the BBC radio series 20 years earlier. Throughout the 2003 video game The Hobbit, the players control Bilbo, voiced by Michael Beattie. The game follows the plot of the book, but adds the elements of platform gameplay and various side-objectives along the main quests. In The Lord of the Rings Online (2007) Bilbo resides in Rivendell, mostly playing riddle games with the Elf Lindir in the Hall of Fire. In Peter Jackson's The Hobbit film series, a prequel to The Lord of the Rings, the young Bilbo is portrayed by Martin Freeman while Ian Holm reprises his role as an older Bilbo in An Unexpected Journey (2012) and The Battle of the Five Armies (2014).
Title: The Lord of the Rings: The Return of the King
Content:  hobbits) and now guides Frodo and Sam into Mordor. The first scene in the film portrays him in his former life as Sméagol, his murder of his relative Déagol for possession of the Ring, as well as his degeneration into Gollum. ; Billy Boyd as Peregrin Took: Better known as Pippin, a hobbit who looks into the palantír and later becomes an esquire of Gondor. ; Dominic Monaghan as Meriadoc Brandybuck: Better known as Merry, a cousin of Frodo's who becomes an esquire of Rohan. ; John Rhys-Davies as Gimli: A dwarf warrior and companion to Aragorn along with Legolas. ; Rhys-Davies also voices Treebeard: The 
Title: The Hobbit: An Unexpected Journey
Content:  Bert the Stone-troll. ; Jed Brophy as Nori: Dori and Ori's brother. ; Adam Brown as Ori: Dori and Nori's brother. ; John Callen as Óin: Gloin's brother. ; Peter Hambleton as Glóin: Óin's brother. Hambleton also plays William the Stone-troll. ; William Kircher as Bifur: Bofur and Bombur's cousin. Kircher also plays Tom the Stone-troll. ; James Nesbitt as Bofur: Bombur's brother and Bifur's cousin, described as "a disarmingly forthright, funny and occasionally brave Dwarf". ; Stephen Hunter as Bombur: Bofur's brother and Bifur's cousin; described in the novel as fat and clumsy. ; Cate Blanchett as Galadriel: the elven co-ruler of Lothlórien along with 
Title: Adam Brown (actor)
Content:  Brown plays the dwarf Ori in the film series based on J. R. R. Tolkien's The Hobbit. The films marked his first film appearance. Commenting on Brown's casting, director Peter Jackson was quoted as saying, "Adam is a wonderfully expressive actor and has a unique screen presence. I look forward to seeing him bring Ori to life."

Question: who plays the dwarf king in the hobbit?
Answer: Richard Crispin Armitage.