The role of Jang Ki-joon was originally offered to actor Lee Sung-jae, but he turned it down himself, leading to Lee Beom-soo being cast instead.
Casting
Actress Kim Hee-sun was reportedly the first choice for the role of Oh Seung-ah, but she declined due to issues in her married life and a need for rest.
Casting
The series features 27 cameo appearances, including several stars who had previously worked with writer Kim Eun-sook and director Shin Woo-chul on the dramas Lovers in Paris, Lovers in Prague, and Lovers.
Casting
Actress Song Yoon-ah personally asked several of her celebrity friends, including Lee Hyori, Kang Hye-jung, Uhm Ji-won, and comedian Kim Je-dong, to make cameo appearances on the show.
Filming
Parts of the series were filmed on location in Taiwan, for scenes in which the character Lee Kyung-min travels there in search of Seo Young-eun.
Reception
The drama was involved in controversy after production staff wages reportedly went unpaid.
References
The show included cameo clips referencing earlier hit Korean dramas, such as Kim Jung-eun recreating a scene from Lovers in Paris, Kim Ok-bin from Bride of Hanoi, and Uhm Jung-hwa and Oh Ji-ho from Sharp 1.
Trivia
After the show ended, some viewers requested that the fictional drama-within-the-drama, Ticket to the Moon, be produced as an actual television series.
