Christopher Knight. The separation is over ... and now former  Brady Bunch  star Christopher Knight has finally filed for a divorce from his reality star wife Adrianne Curry ...TMZ has learned.Back in May, the two announced they were separating to rethink the marriage ...he separation is over ... and now former  Brady Bunch  star Christopher Knight has finally filed for a divorce from his reality star wife Adrianne Curry ... TMZ has learned. Back in May, the two announced they were separating to rethink the marriage ...