Charlie Sheen, Susan Sarandon, Kirstie Alley and Juliette Lewis are among the stars who have called for an end to the annual slaughter of dolphins off the coast of Japan after the hunt kicked off again this week (beg20Jan14). Activists have long campaigned against the yearly cull of bottlenose dolphins, which are herded into Taiji Cove and speared by fishermen, and the barbaric practice was highlighted in Academy Award-winning 2009 film The Cove. As the hunt got underway again on Monday (20Jan14), a number of stars took to Twitter.com to express their outrage. Cheers star Alley pleaded with Japanese citizens to take a stand against the practice, writing, "The Japanese people need to stop the slaughter in Taiji... We can not bully them into stepping up. We can just bring it into their view." Hollywood actress Sarandon called the cull "heartbreaking and infuriating" and Lewis urged fans to tweet their opposition, adding, "Stop this insanity... Tweet 4 dolphins." Other stars to have spoken out against this year's (14) cull include Sheen, who threw his support behind the The Sea Shepherd Conservation Society's campaign against the dolphin slaughter, as well as rocker Matt Sorum, Yoko Ono, William Shatner and illusionist David Blaine.