The Roundabout Theatre Company has scheduled its third annual Casino Night fundraiser for Monday, May 8, at 6:30 p.m. The gala will be held in the penthouse lobby at the American Airlines Theatre, 227, W 42nd St. The proceeds will benefit Roundabout’s programs, including the Education programs, the Theatrical Workforce Development Program and the Musical Theatre Fund. The casino event will include a Texas Hold ‘em poker tournament featuring celebrity players and Roundabout alumni, including World Series of Poker winner Jennifer Tilly, Sebastian Arcelus, John Behlmann, Stephanie J. Block, Santino Fontana, Byron Jennings, and Laura Osnes. There will also be open casino games, such as blackjack, roulette, craps and slot machines. Tickets starting at $500 are available by calling (212) 719-9393, ext. 369, or visiting www.roundabouttheatre.org/casinonight.