South Africa actor Justin John Harvey who plays Tom came to Korea at age 24 and taught himself Korean. He actually speaks the language fluently and currently lives in Korea.
Um Tae-goo made an appearance on this movie as a mart customer. He previously worked with director Park Hoon-jung for Noite no Paraíso (2020)
Actress Shin Shi-A was cast to play the lead female character after going through auditions with 1,408 participants.