Haley Joel Osment, Candace Cameron join FX's 'It's Always Sunny in Philadelphia' ... as a joke
"The Sixth Sense" Oscar nominee Haley Joel Osment as Mac? Former "Full House" sweetheart Candace Cameron as Charlie? We can dig it. And so can the actual stars of "Sunny."
Check out the promo below and the Season 8 premiere of "Sunny" Oct. 11 on FX: