A character who has been Killed Off for Real returns as a ghost or in another character's near death experience, but due to The Other Darrin or the actor changing their appearance, the character now looks completely different from when they last appeared: new hairstyle, has grown facial hair or shaved, aged considerably etc. Opposite of Jacob Marley Apparel. Examples:
Hello, Unknown Troper. You'll need to get known to lend a hand here.