Ok the list from MY stable of actors
Kamenashi Kazuya (Kat-tun)
Yamada Ryosuke (Hey!Say!Jump!)
Noda Yojiro (RADwimps)
ARASHI
Matsumoto Jun
Ninomiya Kazunari
Sakurai Sho
Aiba Masaki
Ohno Satoshi
Yamashita Tomohisa (News and Solo..not made new music for 4-5 years now)
Ikuta Toma (Started out as a singer before Johnny's picked him up)
--Just basically look up Johnnys.net..they can do everything
The actors from High & Low
Iwata Takanori - (Member of EXILE and J Soul Brothers)
Sato Taiki(EXILE)
Fujii Shuuka (FLOWER)
Akira(EXILE)
Takahiro (EXILE and Ace of Spades) m. to takei Emi
Tosaka Hiroomi (J Soul Brothers)
Kuroki Keiji (EXILE THE SECOND)
Elly (Sandaime J Soul Brothers)
There are more but I need to resume watching dramas...Have fun