- Yoo Ah-in (Han Se-joo / Seo Hwi-young)
- Im Soo-jung (Jeon Seol / Ryu Soo-hyeon)
- Go Kyung-pyo (Yoo Ji-no / Shin Yool)
- Kwak Si-yang (Baek Tae-min / Heo Young-min)
- Jo Woo-jin (Gal Ji-seok)
- Oh Na-ra (Secretary Kang)
- Yang Jin-sung (Ma Bang-jin)
- Jeon Soo-kyung (Wang Bang-wool)
- Kang Hong-suk (Won Dae-han)
- Ji Dae-han (Won Man-hae)
- Cheon Ho-jin (Baek Do-ha)
- Jo Kyung-sook (Hong So-hee)
- Seo Hye-jin (Ribera)
- Shim Min (Mi-young)
- Kim Seong-hoon (Lee Jeong-bong)
- Park Sun-im (Hanna Kim)
- Choi Seo-yeon (Seol's colleague)
- Cha Gun-woo (Yool's butler)
- Jung Yeon-joo (Bang-jin's colleague)
- Kim Hyun-sook (Dr. Soo)
- Cha Soon-hyeong (Japanese police)
- Jo Yeong-hoon (Veterinary surgeon)
Chicago Typewriter — S1E6
Episode: The Words Perhaps I Want to Hear the Most
Air Date: 2017-04-22
Runtime: 70 min
Overview
Se-joo finally finds out Ji-no is an actual ghost, and Ji-no explains that he, Se-joo, and Seol were friends in the past. However, no one believes Se-joo sees Ji-no, the ghost. Ji-no tries to persuade Se-joo to finish the novel “Chicago Typewriter” together saying that the novel was actually written by Se-joo 80 years ago.