\"Lost\" and \"Alcatraz\" veteran Jorge Garcia is to guest star on the U.S. fairytale series \"Once Upon a Time,\" TVGuide.com reported. Few details about his Season 2 appearance on the ABC show were available other than he will play a character called \"The Giant,\" possibly in a Jack and the Beanstalk-themed episode, the television news Web site said. Garcia\'s former \"Lost\" co-stars Emilie de Ravin and Alan Dale have also appeared on \"Once Upon a Time.\"