On Friday, Culkin was finally spotted in a rare public appearance at New York's Comic Con, where he sat on a panel with fellow "Robot Chicken" voice actors Seth Green and Breckin Meyer.
Wearing goofy bunny ears and women's sunglasses, the former "Home Alone" star looked much healthier than he did in photos from 2012.
Culkin broke up with Mila Kunis in 2011 and attended Natalie Portman's wedding the following year.
Puzzle-maker slips 'Murdoch Is Evil' into Rupert Murdoch's Sunday Telegraph
Sign language interpreter at Mandela service called out as fake on Twitter