Jerome Flynn rose to fame in the military drama Soldier, Soldier in the early 1990s, where he formed a friendship with fellow actor Robson Green. After their characters featured in an episode singing, they were given a record contract by Simon Cowell and became a massive chart success as Robson and Jerome, with various easy listening covers of classic tracks such as 'What Became of the Broken Hearted' and 'Up on the Roof'. Green went on to appear in a string of acclaimed acting roles in various dramas, whilst Flynn went into musicals and theatre work. Thrones marks his first return to television in a decade. Interestingly, after a much shorter break, Green is also returning to television acting next year in a genre piece, as a guest actor in the third season of Being Human.
On Game of Thrones Flynn will be playing Bronn, a roguish sellsword encountered by several characters in a tavern. Bronn forms a lasting friendship and alliance with Tyrion Lannister (Peter Dinklage), who values the rogue's formidable ability to get things done (just don't ask how he did it) and somewhat relative loyalty. Bronn is a fan-favourite due to his dark humour and his excellent double-act relationship with Tyrion.
James Cosmo is a veteran Scottish actor with roles in many TV series and Hollywood films. He is the go-to guy if you want "Badass Old Guy Who Can Still Slaughter Everyone On Screen Believably," a role he has perfected as Hengist in Merlin, Hrothgar in The Last Legion, Campbell in Braveheart and General Glaucus in Troy. He has also recently appeared on American TV shows FlashForward and Castle, played Galder Weatherwax in the Sky One adaptation of Terry Pratchett's The Colour of Magic and was also Father Christmas in the recent movie version of The Lion, the Witch and the Wardrobe.
In Thrones he is superbly cast as Jeor Mormont, Lord Commander of the Night's Watch. Nicknamed the Old Bear, he commands the defence of the Wall. He is also the father of Ser Jorah Mormont (Iain Glen) and the brother of Lady Maege Mormont, who took over control of the House after Jorah's disgrace and exile to the Free Cities. Mormont is a formidable warrior, strategist and commander, a fine man to hold the Wall against the coming winter.
This last batch of casting announcement brings us much closer to a complete cast list for the first season. Only a few major roles remain to be cast, most notably Lord Tywin Lannister.