Roy left and Siegfried with their white lion.names of the casinos in MYSTIC LAKE CASINO BUFFET PHONE NUMBER White tiger for the show by Siegfried & Roy at The Mirage Hotel & Casino, Las Vegas, Nevada, USA. Play casino games at one of the best online casinos - Golden Tiger Casino. Claim your $ and play instantly for FREE! Entertainers Siegfried & Roy have debuted four adorable tiger cubs to fans at The Mirage Hotel and Casino in Las Vegas. The tigers were born at the pair's Secret Garden and Dolphin Habitat.