Of all the scenes from Seinfeld, perhaps one of the most memorable is the untimely demise of George's Costanza's fiancee Susan, who dies after licking too many cheap envelopes for their wedding invitations.

Actor Jason Alexander last year revealed Susan was only originally supposed to have one line, and said he found working with actress Heidi Swedberg "like punching into jello".

George Constanza's fiancee Susan Ross was only supposed to have one line before being written into the show as his girlfriend. Credit:YouTube

Even though creator Larry David said their lack of chemistry was the reason why he kept her, Alexander revealed overnight on the Howard Stern Show how the plan was hatched to eventually kill Susan off.