High Quality Content by WIKIPEDIA articles! Calvin Valentine is a fictional character from the long-running Channel 4 soap opera Hollyoaks, played by Ricky Whittle. He arrived in July 2006 as a police officer with his mother and younger siblings and made his final appearance on 21 May 2010 after he was murdered by Theresa McQueen. Whittle was credited for a flashback episode on 1 December 2010. Calvin appeared again as a ghost in February 2011.