Jung Jin-young

as Kim Yu-sin

Lee Moon-sik

as Thingamajig

Ryu Seung-ryong

as Namgun

Hwang Jung-min

as Silla King

Yoon Je-moon

as Namseng

Sun Woo-sun

as Gap-sun

Kim Min-sang

as Thingy

Lee Kwang-soo

as Mundi

Lee Won-jong

as Yeon Gaesomun

Lee Joon-ik

Director