Will Ferrell Good Genes or Good Docs?

12/24/2017 12:00 AM PST

Will Ferrell -- Good Genes or Good Docs?

Will Ferrell's good looks should be on a Christmas card!

Here's a 37-year-old version of Santa's helper back in 1999 (left) and 18 years later ... the famous 50-year-old elf was spotted away from the North Pole at a party in London (right).

He's everyone's Buddy.

The question is ...