Question: Casey Mitchum was portrayed by an American actor best known for his portrayal of which character in Grand Theft Auto IV?

Context paragraphs:
Casey Mitchum: Casey Mitchum is a fictional character from the American soap opera, "Sunset Beach", portrayed by American actor Timothy Adams during the show's entire run.

Controversies surrounding Grand Theft Auto IV: "Grand Theft Auto IV" is an open world, action-adventure video game developed by Rockstar North and published by Rockstar Games.  Upon its release on 29 April 2008 for the PlayStation 3 and Xbox 360, "Grand Theft Auto IV" generated controversy.  The game's depiction of violence received mass commentary from journalists and government officials, occasionally being referred to as a "murder simulator".  The ability to drive under the influence of alcohol in the game also received criticism, resulting in a request for the ESRB to change the game's rating.  Similarly, some gameplay features were censored for the Australian and New Zealand versions of the game, though these censors were subsequently removed.  Several crimes that were committed following the game's release, such as murder and sexual violence, were attributed to the perpetrators' experience with the game, generating further controversy.  Former attorney Jack Thompson, known for his campaigns against the series, heavily criticised "Grand Theft Auto IV" prior to its release, filing lawsuits against parent company Take-Two Interactive, and threatening to ban distribution of the game if some gameplay features were not removed.  The game also generated further controversy and lawsuits from city officials and organisations.

Grand Theft Auto: The Lost and Damned: Grand Theft Auto IV: The Lost and Damned is the first of two episodic expansion packs developed for the Xbox 360, PlayStation 3 and PC versions of "Grand Theft Auto IV", developed by Rockstar North and published by Rockstar Games.  It was first released for the Xbox 360 on 17 February 2009 and on PlayStation 3 and Microsoft Windows on 13 April 2010.  It is the third expansion pack game in the "Grand Theft Auto" series (the first since "", released in 1999), and the twelfth release overall.

List of Grand Theft Auto IV characters: A number of recurring characters appear in the video game "Grand Theft Auto IV", set in 2008.  The characters that appear in "Grand Theft Auto IV" are relatively diverse and relative to the respective boroughs of Liberty City they are based in, belonging to various gangs and ethnic groups.  The player controls Niko Bellic, an immigrant from Eastern Europe.  According to Dan Houser, "virtually none of the characters from the previous games returned, as the "GTA IV" era is set in a parallel universe compared to the "GTA III" era.

Grand Theft Auto V: Grand Theft Auto V is an action-adventure video game developed by Rockstar North and published by Rockstar Games.  It was released on 17 September 2013 for PlayStation 3 and Xbox 360, on 18 November 2014 for PlayStation 4 and Xbox One, and on 14 April 2015 for Microsoft Windows.  It is the first main entry in the "Grand Theft Auto" series since 2008's "Grand Theft Auto IV".  Set within the fictional state of San Andreas, based on Southern California, the single-player story follows three criminals and their efforts to commit heists while under pressure from a government agency.  The open world design lets players freely roam San Andreas' open countryside and the fictional city of Los Santos, based on Los Angeles.

Grand Theft Auto: The Ballad of Gay Tony: Grand Theft Auto: The Ballad of Gay Tony is the second of the two episodic expansion packs available for the PlayStation 3, Microsoft Windows and Xbox 360 versions of "Grand Theft Auto IV", developed by Rockstar North.  It was first released for the Xbox 360 on 29 October 2009, before then being released for the PlayStation 3 and Microsoft Windows on 13 April 2010.  It is the fourth expansion pack in the "Grand Theft Auto" series and the 14th release on the series.

Timothy Adams (actor): Timothy Christopher Adams (born August 4, 1967) is an American actor and model.  He is best known or his portrayal of Brucie Kibbutz in the video game Grand Theft Auto IV.  He has also been in various television roles such Casey Mitchum in "Sunset Beach" as well as multiple film roles as bit parts such as "Bad Boys II" and "Die Hard with a Vengeance".

Development of Grand Theft Auto V: An approximately 1,000-person team developed "Grand Theft Auto V", an action-adventure video game, over several years.  Rockstar Games released "Grand Theft Auto V" on 17 September 2013 for PlayStation 3 and Xbox 360, on 18 November 2014 for PlayStation 4 and Xbox One, and on 14 April 2015 for Microsoft Windows, as the fifteenth entry in the "Grand Theft Auto" series.  Development began soon after "Grand Theft Auto IV"' s release and was led by Rockstar North's core 360-person team, who collaborated with several other international Rockstar Games studios.  The team considered the game a spiritual successor to many of their previous projects like "Red Dead Redemption" and "Max Payne 3".  After its unexpected announcement in 2011, the game was fervently promoted with press showings, cinematic trailers, viral marketing strategies and special editions. Its release date, though subject to several delays, was widely anticipated.

Grand Theft Auto: Vice City Stories: Grand Theft Auto: Vice City Stories is an open world action-adventure video game developed by Rockstar Leeds in conjunction with Rockstar North and published by Rockstar Games.  Released on 31 October 2006 for the PlayStation Portable and later for the PlayStation 2 on 5 March 2007.  The game is the tenth instalment in the "Grand Theft Auto" series and the sixth and last game in the 3D universe.  This was also the last game in the series to use well-known and Hollywood voice talent; "Grand Theft Auto IV" onward would instead use lesser-known and unknown voice actors.  It is a prequel to "" and successor to the previous PSP release, "".  Vice City is a representation of Miami, Florida.

Rockstar San Diego: Rockstar San Diego, Inc. (formerly Angel Studios, Inc.) is an American video game development studio under the Rockstar Games umbrella, located in Carlsbad, California.  The studio pioneered open world racing games with the "Midtown Madness" and the award-winning "Midnight Club" series.  It is also responsible for the "Red Dead" series of western games, "Red Dead Revolver" in 2004 and "Red Dead Redemption" in 2010.  The studio also houses the RAGE Technology Group which developed the RAGE engine that is used in almost all Rockstar games, including "Grand Theft Auto IV", "Red Dead Redemption", "Max Payne 3" and "Grand Theft Auto V".  The studio was acquired by Take-Two Interactive in November 2002.

Supporting paragraphs: Casey Mitchum Timothy Adams (actor)
Answer: Brucie Kibbutz