He was said to be close to death last year as he allegedly battled various addiction issues.
And during this difficult period Macaulay Culkin was pictured on several occasions looking worryingly gaunt and dishevelled.
But it seems the tide has turned for the troubled star as he looked far healthier during a rare public appearance on Friday at the 2013 Comic Con in New York.
The 33-year-old looked fit and healthy whilst performing his duties as a guest panellist for the Robot Chicken Panel for the annual event which was held at the Javits Centre.
Culkin looked rather dapper in his smart and trendy ensemble of dark blue jeans and blue blazer which he teamed with a snug fitting white tank top.
The eclectic star accessorised with various mismatched bracelets and rings and wore a long chain that resembled rosary beads against his chest.
He also wore a pair of bunny ears on his head, no doubt playing up to the comedic theme of the event and in true star style kept his eyes covered with a pair of large dark oversized sunglasses.
Macaulay looked on fine form as he strode out confidently and greeted the audience with a wide smile and a joke.
The Home Alone star had noticeably gained weight and showed off his healthy and muscular new physique as he took of his jacket and larked around with fellow panelists Seth Green, Breckin Mayer and Matthew Senreich.
Maybe 50 Shades could use him now.