From A Wiki of Ice and Fire
Alton Lannister as portrayed by Karl Davies
|Played by||Karl Davies|
|TV series||Season 2|
Alton Lannister is the cousin of Ser Jaime Lannister, Tyrion Lannister and Queen Cersei Lannister. The character was created specifically for the TV Series and is played by Karl Davies. He replaces Cleos Frey from the books, as being a captive of House Stark and delivering terms to House Lannister. His name appears to have been changed so that TV viewers would not be confused that he is on the Lannisters' side, despite House Frey officially declaring for Robb Stark.
Game of Thrones
Alton's relationship to the main branch of the family is not clear. His mother is named Cynda Lannister.
Alton states that at Willem Frey's wedding his family sat at "a table so far on the edge of the feast you could barely even see the bride." Alton squired for his cousin Jaime at the wedding after the previous squire got drunk, an experience that he later described as "the best day of my life".
Soon after news of King Joffrey Baratheon's bastardy reaches the Northern camp, Robb Stark tasks Alton with sending his peace terms to King's Landing. Ser Alton remarks that Robb's demand for the return of Sansa and Arya as well as Ned Stark's bones and the remains of all the Stark household, is an honorable request, but expresses doubt and surprise when Robb also demands that the independence of the North and Riverlands be respected. He also tries to correct Robb when he refers to Joffrey as a Lannister.
Alton Lannister presents Stark's demands to the small council, but Queen Cersei rejects them and sends him back with the Iron Throne's reply. Cersei also asks him to tell Jaime that he has not been forgotten and Tyrion wishes Alton a safe journey.
He returns to the Westerlands to inform Robb of Cersei's response, and Robb asks that he return to his old pen but the prisoners are far too many that they have occupied it, so Alton is placed in his cousin, Jaime's cell, until a new pen can be built. He tells Jaime his mother's name at which Jaime, not knowing who that is, asks if she is the fat one. Alton mentions squiring for Ser Jaime once and that his father was furious at Alton's volunteering to be a replacement squire as he might embarrass their lesser branch of the family before the major one. At first Jaime doesn't remember until reminded that his squire Brian had become so sick he threw up on his own horse. He then remembers that Alton had been a much better squire than Jaime himself had been and shares his experience of squiring for Barristan Selmy. Alton asks if Jaime has ever thought of escaping imprisonment, when Jaime replies that he has a plan, Alton agrees to help and gets close to hear what he is to do. Jaime whispers to him the one thing he has to do is to die, then headbutts him and beats him repeatedly with his shackles. Their guard, Torrhen Karstark enters the cell to check the convulsing Alton, allowing Jaime to get behind him and strangle him with his chains. Getting the key from his belt, he frees himself from the chains and escapes from the cell.
- See also the Alton Lannister article on the Game of Thrones, TV Series wiki.