The Star Trek actor died of blunt traumatic asphyxia in June (16), aged 27, in a freak car accident. He was pinned between a brick pillar and his car after it rolled backwards down the steep driveway of his home in San Fernando Valley, California.

His friends and family mourned his death at a private funeral service later that month (Jun16), and his parents have now reached out via a full-page advert in The Hollywood Reporter magazine to thank anybody who has sent them condolences or gifts.

The page features a black-and-white professional photograph of Anton, followed by the title "Thank You" in a handwritten-style font.

The printed message reads, "To all of you who have sent flowers and gifts, for your condolences and kind words and to all who came to celebrate the life our... son, Anton. We are deeply grateful for your unconditional love... He would be surprised at how many hearts and souls he touched. Thank you very much, Irina & Viktor Yelchin."

Anton stars in Star Trek Beyond, which is released in the U.S. and U.K. on 22 July (16), and his co-stars have been paying tribute to him as they embark on their press tour.

Chris Pine recently told WENN that he needed his castmates and family to help him overcome the grief of Anton's death.

"I don't really know any other way that I would have been able to deal with it without having my friends and my family around me," he said. "I'm new to that kind of grief and new to losing people and it's just an awful thing but at least we had our friends there."