I thought it was the tall dude on Fantasy Island?
The first written appearance of the proverb "revenge is a dish best served cold" is often credited to the 18th century novel Les liaisons dangereuses, but since it doesn't actually appear in the original French language text, the validity of this attribution is unclear. The English version of this phrase in that exact wording can be attributed to The Godfather by Mario Puzo, a major bestseller in 1969. However, the phrase appeared in the 1949 film Kind Hearts and Coronets as "revenge is a dish which people of taste prefer to eat cold"[2]. The more well-known wording of this quote is also featured in the title sequence of the Quentin Tarantino film Kill Bill: Vol 1, accredited as an "Old Klingon Proverb", referencing the phrase's usage in Star Trek II: The Wrath of Khan, where it is similarly cited as such. It means that to be successful, revenge should be a considered and planned response enacted when the time is right, rather than a hasty and 'hot-blooded' action which will increase the chances of failure.