Alexander Simon "Alex" Rendell or Nirawit Rendell, is a British-Thai actor, singer, environmentalist and UNEP Goodwill ambassador who has starred in Thai films such as The Tesseract (2003), Indiana Joai: Elephant Cemetery (2003), Pisaj (2004) and 13 Beloved (2006). Alexander is also the co-founder and chief executive officer of the Environmental Education Center Thailand founded in 2015 and the first Thai UNEP Goodwill Ambassador, appointed on 5 June 2020.