All Cast
Park Sung-young
Han Tae-pyeong / Robot Max (voice)
Kim Yeon-woo
Nana (voice)
Lee Ho-san
Kang-min (voice)
An Young-mi
Captain Jeong Su-jeong / Robot Angel (voice)
Lee Dal-lae
Robot Angel / RCC Crew 3 (voice)
Hwang Dong-hyun
Kang-hyeok / RCC Crew 1 (voice)