#2m2 ming

Actors who were about the same age as their characters when they played them...

So with Thai military obligations and the spread of birthdays throughout the year I figured this was somewhat fungible. These are my best guesses. 

Captain Chonlathorn as Noh - 16 (not yet a senior high school in Love Sick)

Jimmy Karn as Saifah - 20 (2nd year college student in Why R U?)

Joong Archen as Ming - 18 (1st year college student in 2 Moons 2)

Krist Perawat as Arthit - 21 (3rd year college student in SOTUS)

Ohm Pawat as Frame - 16 (not yet a senior in high school in Make it Right)

Ohm Thitiwat as Dean - 22 (3rd year college student in Until We Meet Again)

Peak Peemapol as Fuse - 17 (not yet a senior in high school in Make it Right)

Nine Kornchid as Kit - 20 (2nd year college student in 2 Moons 2) 

Drake Sattabut as Mil - 20 (2nd year college student in 2gether) 

Other Posts Where I go Into age dynamics in Thai BL 

Thai Actor Ages (who has a phi who) 

BL Actors & Age Dynamics (phi/nong and how it affects pairs)