According to his stepfather writer Carsten Jensen, Nanny McPhee star Raphael Coleman had experienced no recent health issues before his death on February 6.
Coleman died at age 25 after he collapsed while jogging and could not be revived.
Up until recently, the actor-turned-scientist had disappeared from the spotlight after acting in the children's film Nanny McPhee. He had gone onto dedicate his life to environmental conservation.
Jensen posted about Coleman in a touching eulogy to the late actor on social media.