I'm going more than two actors and actresses in each channels because I have more than one and two in each ones haha I also wouldn't consider them the BEST, but I'm going to be honest with my results of who I think have improved their acting skills, and whom that received many awards. Some are my favorites, but I won't based it upon my personal reasons, just honesty of whom I really think that have improved and received awards.
CH.3
Veteran Actors: Ken Theeradeth, Aum Athichart, Por Nattawut, Andrew, Willy McIntosh, Rome Patchata, Tao Somchai Khemklud, Chai Chaiyodom, Nok Chatchai
Newbies/Young Actors: Mark Prin, Nadech, Boy Pakorn, Pope Thanawat, Mario Maurer, Top Jaron, Alex Rendell (not a newbie and not considered new, but he is a young generation), Grate Warintorn
CH.3
Veteran Actresses: Anne Thongprasom, Aff Taksorn, Janie Tienphosuwan., Ploy Cherman, Chompoo Araya, Benz Pornchita, Joy Rinlanee, Noy Bussakorn, Cherry Khemapsorn, Nat Myria, Vicky Sunisa, Ning Kullasatree,
Newbies/Young Actresses: Mint Chalida, Yaya, Kim, Taew Nataporn, Matt Peeranee, Margie Rasri.
CH.7
Veteran Actors: Num Sornram, Sam Yuranant, Weir Sukollawat, Cee Siwat, Oil Thana, Lift Supoj, James Ruangsak (now a freelance actor or ch.3 actor), Vee Veeraparb, New Wongsakorn, Johnny A. (now a ch.3 director/actor), Kelly Thanapat
Newbies/Young Actors: Porshe Saran, Natthew Tiewphongarm, Boss Thonont
CH.7
Veteran Actresses: Tik Kanyarat (now in ch.3), Kob Suwanan, Noon Woranuch, Pok, Yui Jiranan, Amy Klinpratoom, Aum Pacharapa
Newbies/Young Actresses: Mai Davika, Min Pechaya, Baifern, Chat Pariyachat, Pancake (not consider new, but young), Kwan Usamanee, Green AF5
CH.5
Veteran Actors: Captain, Pong Nawat
Newbies/Young Actors: --
CH.5
Veteran Actresses: Mam K. McIntosh, Aom Piyada, Nok Sinjai
Newbies/Young Actresses: don't know any and not really focused on them.
Freelance
Om Akkapan, Tik Jedsadaporn