* Lee Yo-won as Song Yi-kyung
* Jo Hyun-jae as Kang Min-ho
* Bae Soo-bin as Han Kang
* Nam Gyu-ri as Shin Ji-hyun
* Jung Il-woo as Scheduler #21
* Lee Kyung-jin as Park Mi-ho
* Kim Tae-hyun as Park Ki-tae
* Ryu Jin as Seo Woo-jin
* Park Ji-yeon (T-ara) as Kang Se-in
Please note that there was another Korean drama series called "49 Days" (also known as "49 Days") that aired in 2011. It featured a completely different cast and story.