"Atom" Apichaya Kamnoetsirikun is an artist under Star Hunter Entertainment (สตาร์ ฮันเตอร์ เอ็นเตอร์เทนเม้นท์). She's a member of their girl group Cosmos and the sub-unit CYGNUS. She was previously a member of CM Cafe and its units Cheesy Pie, FMA Parfait and Honey Toast. (Source: MyDramaList)