Jennifer Aniston, who starred in the hit TV series Friends, recently revealed during an interview that there was one guest actor who was difficult to work with on the set. Fans were curious to know who it was, and Howard Stern even asked if it was Tom Selleck, who played Monica's love interest.
Jennifer jokingly said that it was Tom, but quickly added that he was actually a great person to work with, and even has an "angel's halo" over his head. Tom also made a brief appearance in the Friends reunion and is well-loved by fans. The identity of the difficult guest actor remains a mystery.
