عبر الجدران

Kang Ha-neul

No Woo-seong

Yeom Hye-ran

Jeon Eun-hwa

Seo Hyun-woo

Yang Jin-ho

Kim Hyun Jung

Ha Ja-gyeong (1301 resident)

Jeon Jin-oh

Jeon Gwang-cheol (1301 resident)

Seong-il Park

Ga Joo-ho (Eun-hwa's Husband)

Jo Han Joon

Lee Chang-woo (Woo-seong's co-worker)

Jo-Yura

Lee Joo-yeon (1402 resident)

Jong-goo Lee

Kim Yeong-cheol (1701 resident)

Yoon Jung Il

Lee Sang-wook (1601 resident)

Na Ho Sook

Na Ok-seon (1701 resident)

Woo Sung Eun

Woo-seong's fiancé

Sung-Hyun Ryoo

Real Estate Agent

Kang Ae-shim

Nam Hae-joo

Baek Do Gyum

Maintenance Man

Seo Han-Gyeol

Police officer 2

Jae-Young Joe

Police Officer

Kim Hak-sun

Police station chief