Question: What is the nationality of the man who voice Sam Fisher in the first five installments?

Context articles: Sam Fisher (footballer)
Tom Clancy's Splinter Cell: Conviction
Tom Clancy's Splinter Cell: Double Agent
Desmond Miles
Michael Ironside
Tom Clancy's Splinter Cell: Pandora Tomorrow
Hidden Expedition
Tom Clancy's Splinter Cell
Tom Clancy's Splinter Cell (video game)
Sam Fisher (Splinter Cell)

Sam Fisher (born 10 July 1982) is a former professional Australian rules footballer who played for the St Kilda Football Club in the Australian Football League (AFL).
Tom Clancy's Splinter Cell: Conviction is a 2010 spy thriller stealth video game, developed by Ubisoft Montreal as part of the "Tom Clancy's Splinter Cell" series.
 Key members of the "" team, such as creative director Maxime Béland worked on the game.
 Gameloft released a handheld version for Apple's iOS on May 27, 2010.
 There are also versions available for the Android, Windows Phone and Bada.
 This was Michael Ironside's final voice performance as Sam Fisher.
 The game was followed by a sequel in 2013 titled, "Splinter Cell Blacklist".
Tom Clancy's Splinter Cell: Double Agent is an action-adventure stealth video game, developed and published by Ubisoft.
 The series, endorsed by American author Tom Clancy, follows the character Sam Fisher, an agent employed by a black-ops division of the National Security Agency, dubbed Third Echelon.
 "Double Agent" was released for the GameCube, PlayStation 2, Xbox and Xbox 360 in October 2006.
 The Wii and Microsoft Windows versions were released in November 2006.
 A PlayStation 3 version was released in March 2007.
 Originally the game was set for a March 2006 release, but Ubisoft moved the release date to October 2006 in order to have more development time.
 Ubisoft then released their fiscal quarter results for Q1 2006 and announced that "Double Agent" would be put back at least one month in order to boost Q3 2006 income.
Desmond Miles is a fictional character and the main protagonist of the frame story uniting the first five installments in the "Assassin's Creed" series of video games.
 He is a descendant of a long line of other Assassins, including Aquilus, Altaïr Ibn-La'Ahad, Ezio Auditore da Firenze, Edward Kenway, and .
 Miles is voiced by Nolan North and is modeled after Canadian fashion model Francisco Randez.
Frederick Reginald Ironside (born February 12, 1950) is a Canadian actor best known by his stage name Michael Ironside.
 He has worked as a voice actor, producer, film director, and screenwriter in movie and television series in various Canadian and American productions.
 He is best known for playing villains and "tough guy" heroes, though he has also portrayed sympathetic characters.
 Ironside is a method actor, who stays in character between filming scenes.
Tom Clancy's Splinter Cell: Pandora Tomorrow is a stealth video game developed and published by Ubisoft Shanghai, while Ubisoft Montreal, developer of the original "Splinter Cell", was working on "".
 "Pandora Tomorrow" is the second game in the "Splinter Cell" series endorsed by writer Tom Clancy.
 The game follows the covert activities of Sam Fisher, an agent working for a black-ops branch of the National Security Agency (NSA) called "Third Echelon".
 Sam Fisher is voiced by Michael Ironside, Dennis Haysbert voices the character Irving Lambert, Fisher's boss, making this the only time he is not voiced by Don Jordan.
 Lalo Schifrin provides the theme music for the game.
 A remastered high-definition version of "Tom Clancy's Splinter Cell: Pandora Tomorrow" was announced for the PlayStation Network for the PlayStation 3 on December 20, 2010.
Hidden Expedition is a series of single player hidden object casual games developed by the internal studios of Big Fish Games for the first five installments (using Big Fish Games Framework as the engine, and with the help of Flood Light Games in the 5th game), and by Eipix Entertainment for all subsequent installments.
 As of September 2017, a total of fifteen games in the series have been released.
 The Hidden Expedition series marks the second major hidden object game brand from Big Fish Games.
 The second game in the series, "Hidden Expedition: Everest", would go on to be the first game Big Fish released to the iPhone.
Tom Clancy's Splinter Cell is a series of award-winning stealth video games, the first of which was released in 2002, and their tie-in novels.
 The protagonist, Sam Fisher, is a highly trained agent of a fictional black-ops sub-division within the NSA, dubbed "Third Echelon".
 The player controls Fisher to overcome his adversaries in levels (created using Unreal Engine and emphasising light and darkness as gameplay elements).
 All the console and PC games in the series were critically acclaimed, and the series is commercially successful.
 The series, along with "Assassin's Creed", is considered to be one of Ubisoft's flagship franchises, selling more than 31 million copies as of 2011.
Tom Clancy's Splinter Cell is a 2002 stealth video game developed by Ubi Soft Montreal and built on the Unreal Engine 2.
 It is the first "Splinter Cell" game in the series.
 Endorsed by author Tom Clancy, it follows the activities of NSA black ops agent Sam Fisher.
 The character of Fisher is voiced by actor Michael Ironside.
Samuel "Sam" Fisher is a fictional character and the protagonist of the "Tom Clancy's Splinter Cell" series of video games developed by Ubisoft as well as a series of tie-in novels endorsed by Tom Clancy.
 His full name is first seen in "Tom Clancy's Splinter Cell", the first game of the series, when he was using the computer in the V-22 Osprey to encrypt his home call.
 Fisher was originally voiced by veteran actor Michael Ironside in the first five installments of the series.
 In 2013, Eric Johnson assumed the voice and physical role in "".