조정석,이선균,유재명,우현,이원종,전배수,송영규,최원영,강말금,박훈,Lee Hyun-kyun,진기주,유성주,Kim Pub-lae,임기홍
Jack Black,Awkwafina,Viola Davis,Dustin Hoffman,Bryan Cranston,James Hong,Ian McShane,Ke Huy Quan,Ronny Chieng,Lori Tan Chinn,Seth Rogen,Jimmy Donaldson,James Murray,James Sie,Cedric Yarbrough,Vic Chao,April Hong,Suzanne Buirgy,Logan Kim,Reyn Doi
힘든사람을그냥지나치지못하는무술유단자이정도.보호관찰관김선민이그런정도를알아보고‘무도실무관’을권한다.이제전자발찌대상자를감시하며범죄를예방하는그들의활약이펼쳐진다.