Which actor plays the role of the main antagonist in the 2011 movie "Tower Heist?"

Alan Alda plays the role of the main antagonist in the 2011 movie "Tower Heist." He portrays Arthur Shaw, a Wall Street tycoon who is caught in a Ponzi scheme and subsequently becomes the target of a group of building workers seeking revenge. Alda's portrayal of Shaw embodies the cunning and manipulative nature of the character, making him a formidable adversary for the film's protagonists. His performance captivates viewers as he skillfully balances charm and ruthlessness, making him a fitting choice for the main antagonist in "Tower Heist."