Oscar Isaac -- Good Genes or Good Docs?!

In a galaxy far, far away ... Oscar Isaac is looking good!!!

Here's the 27-year-old actor from the movie "Ex Machina" with his long locks at the Toronto International Film Festival in Canada back in 2006.

And, 13 years later ... the now 40-year-old star made his 'Star Wars' trilogy debut as fast-flying Poe Dameron in "Star Wars: The Force Awakens" -- whose final episode of the series premieres this holiday weekend -- flaunts his newfound franchise fame at the European premiere for "Star Wars: The Rise of Skywalker" in London, England earlier this week.

May the force be with you!

The question is ...