Arthur Weasley

"Fascinating, Ingenious, really how many ways Muggles have found ways of getting along without magic.""

- Arthur Weasley "Molly Weasley: "Your sons flew that enchanted car of yours to Surrey and back last night." Arthur: "Did you really? How did it go?""

- Molly and Arthur reflecting on Arthur's personality Arthur Weasley is a major character in the Harry Potter books and film series.

Mr. Weasley is the patriarch of the Weasley family, being the husband of Molly Weasley and the father of the Weasley children.

At the end of the series, he becomes the father-in-law of Hermione Granger and Harry Potter and the grandfather of several grandchildren, which include James, Albus and Lily (Harry and Ginny's children) and Rose and Hugo Granger-Weasley (Ron and Hermione's children.

LEGO books
In LEGO Harry Potter: Building the Magical World and LEGO Harry Potter: Characters of the Magical World, Arthur's LEGO form appears.

Harry Potter: The Character Vault
Harry Potter: The Character Vault is a book that gives information about the Harry Potter characters, and a profile on Arthur Weasley is present.

Harry Potter film series
Apart from  The Philosopher's Stone, Arthur appears in all seven of the Harry Potter sequels that follow. Starting from The Chamber of Secrets to The Deathly Hallows Part 2 he is portrayed by Mark Williams.

The Goblet of Fire
Despite not appearing in the third task in the book, Arthur appears at the final task in the film rather than his wife and sons, Bill and Charlie (who was never introduced in the series)

The Order of the Phoenix
Like in the novel, Arthur is attacked by Nagini when doing his rounds of security on the prophecy. His stay at St. Mungo's and the Weasley's and Harry's visit to the hospital is cut. Instead, it is implied before the kids go on Christmas break, he stayed there for a while before going to 12 Grimmauld Place to spend Christmas with his family, Harry, Hermione and Sirius. Also, there is no mention of Arthur and Percy's nasty argument. However, Percy's estrangement from his family is implied.