David Wallace (The Office)

David Wallace is a fictional character in the American comedy series "The Office", played by Andy Buckley. Wallace is introduced in the second season as the new chief financial officer of Dunder Mifflin. 
Wallace is named after David Foster Wallace, a favorite author of John Krasinski and executive producer Michael Schur. 
His character is a wealthy executive at the corporate headquarters in New York. He is seen as supportive of Regional Manager Michael Scott, Jim Halpert and Toby Flenderson. He is let go in the sixth season. He later sells his patent for a toy vacuum, called "Suck It," to the U.S. military for $20 million and later buys Dunder Mifflin and becomes CEO in the eighth-season finale, "Free Family Portrait Studio".