Movie Cast (12)

• 

  Lee Ji-hyun

  Romi (voice)

• 

  Jo Kyoung-i

  Heartsping (voice)

• 

  Choi Nak-yoon

  Heart King / Monster Truthping (voice)

• 

  Yeo Min-jeong

  Belita / Girl (voice)

• 

  Hong So-young

  Stella (voice)

• 

  Hong Bum-ki

  Dr. Monziu / General Teenieping (voice)

• 

  Kim Ha-yeong

  Marie (voice)

• 

  Ryu Seung-gone

  Liam / Butler (voice)

• 

  Cho Hyun-jung

  Truthping (voice)

• 

  Kim Eun-ah

  Happying / Young Liam / Girl's Mom (voice)

• 

  Jang Ye-na

  Lalaping / Maid / Stickping (voice)

• 

  Um Sang-hyun

  Mr. Bus Stop / Freezeping (voice)

Movie Crew (17)