Two Rhode Island institutions of higher education are announcing their commencement speakers. The New England Institute of Technology is bringing on former "Star Trek" actor William Shatner to speak at the Dunkin' Donuts Center in Providence on May 6th. Meanwhile, the University of Rhode Island has announced its commencement address will be delivered by Gina McCarthy, the former administrator of the EPA during the Obama administration. URI's commencement ceremony is scheduled for May 20th.