Joe Manganiello has dropped out of his role in the upcoming History Channel show Six, and production has been delayed while his role is being recast, a rep for the History Channel confirms to Us Weekly. The True Blood alum, 39, had to pull out of the series due to a health issue and the physical demands of the role, a source tells Us. Manganiello will be fine as it is a manageable preexisting condition, a second source adds.