Little did they know, there was a real-life romance brewing between the costars. Since becoming castmates on the hit Netflix martial arts series in 2018, Buchanan and Mouser have maintained a sweet friendship off-screen.

Wedding bells are ringing for “Cobra Kai” costars Mary Mouser and Tanner Buchanan, and the timing couldn’t be better.

Cobra Kai' stars Tanner Buchanan and Mary Mouser confirmed their engagement after debuting matching diamond rings at the show's series finale event