Reunited Worlds

Composer

• 
  Park Se Jun

Director

• 
  Baek Soo Chan

Screenwriter

• 
  Lee Hee Myung

Main Role

• 
  Yeo Jin Goo

  Sung Hae Sung

  Main Role
• 
  Lee Yun Hee

  Jung Jung Won

  Main Role
• 
  Ahn Jae Hyun

  Cha Min Joon

  Main Role

Support Role

• 
  Shin Soo Ho

  Gil Moon Shik

  Support Role
• 
  Lee Si Eon

  Shin Ho Bang

  Support Role
• 
  Kim Jin Woo

  Cha Tae Hoon

  Support Role
• 
  Park Jin Joo

  Hong Jin Joo

  Support Role
• 
  Yoon Sun Woo

  Sung Yeong Joon [Hae Sung's younger brother] (Eldest)

  Support Role
• 
  Kim Ga Eun

  Sung Yeong In [Hae Sung's younger sister - eldest from the two sisters]

  Support Role
• 
  Kwak Dong Yeon

  Sung Hae Chul [Hae Sung's younger brother]

  Support Role
• 
  Kim Hye Jun

  Sung Soo Ji [Hae Sung's younger sister, youngest]

  Support Role
• 
  Bang Eun Hee

  Yun Mi Na [Tae Hun's mother]

  Support Role
• 
  Park Young Gyu

  Cha Kwon Pyo

  Support Role
• 
  Kyeon Mi Ri

  Soon Myung Ok

  Support Role
• 
  Park Seung Tae

  Kang Mal Yi

  Support Role
• 
  Jung Chae Yeon

  Jung Jung Won [Young]

  Support Role
• 
  Kim Min Sang

  Gil Moon Shik [Young]

  Support Role
• 
  Park Sung Jun

  Shin Ho Bang [Young]

  Support Role
• 
  Choi Soo Han

  Cha Tae Hoon [Young]

  Support Role
• 
  Park Jun Mok

  Seong Yeong Jun [Young]

  Support Role
• 
  Lee Young Eun

  Sung Young In [Young]

  Support Role
• 
  Jeon Jin Seo

  Sung Hae Chul [Young]

  Support Role
• 
  Choi Yu Ri

  Sung Soo Ji [Young]

  Support Role
• 
  Choi Sung Min

  Dong Hyun [Young]

  Support Role
• 
  Ahn Sol Bin

  Nam Soon Ji

  Support Role
• 
  Kim Byung Se

  [Doctor]

  Support Role
• 
  Kang Tae Sung

  Park Dong Seok / Jason Park

  Support Role
• 
  Han So Hee

  Lee Seo Won

  Support Role
• 
  Sung Chang Hoon

  Jang Sang Hoon

  Support Role
• 
  Kim Ha Na

  Sung Gong Joo [Hae Chul's daughter]

  Support Role
• 
  Kim Young Woong

  [Moneylender]

  Support Role
• 
  Jeon Gook Hwan

  Ha Do Gwon

  Support Role

Guest Role

• 
  Kim Hee Jung

  Nam Yoo Min [Gong Joo's mother]

  Guest Role
• 
  Ahn Kil Kang

  Ahn Tae Bok

  Guest Role
• 
  Seo Yi Sook

  [Jung Won's mother](Ep.5)

  Guest Role
• 
  Kim Min Sang

  Gil Moon Shik [Young]

  Guest Role
• 
  Kim Ji Hoon

  [Young boy]

  Guest Role
• 
  Joo Byung Ha

  [Man of couple]

  Guest Role
• 
  Min Joon Ho

  Ahn Moon Kwang

  Guest Role
• 
  Sung Min Jun

  [Lake park boy] (ep.36)

  Guest Role
• 
  Ok Ye Rin Guest Role
• 
  Kim Mi Hye

  [Food truck customer woman 2]

  Guest Role
• 
  Bae Jin Woong

  [Moneylender]

  Guest Role
• 
  Baek Chun Ki

  [Restaurant staff]

  Guest Role
• 
  Kang Ro Chae

  [Coffee woman]

  Guest Role
• 
  Park Kyu Yeop Guest Role
• 
  Han Seo Yeon

  [Kindergarten teacher]

  Guest Role
• 
  Choo Soo Bin Guest Role
• 
  Park Jin Soo

  Hong Jin Joo [Young]

  Guest Role
• 
  Han Eun Sun

  [Alumna]

  Guest Role
• 
  Song Min Jae

  [Boy with balloon crying for his mother]

  Guest Role
• 
  Park Jong Seol Guest Role
• 
  Geum Bo

  [Youtuber]

  Guest Role
• 
  Lee Je Yeon

  Yang Kyung Cheol

  Guest Role
• 
  Jung Jong Woo

  [Confrontation] (Ep. 17)

  Guest Role
• 
  Oh Yoo Mi

  [Doctor]

  Guest Role

Unknown

• 
  Oh Jung Tae Unknown
• 
  Yoon Jae Hyun Unknown
• 
  Ryu In Young Unknown
• 
  Lee Gyu Ho Unknown
• 
  Woo Yeon Seo Unknown
• 
  Jeon Jin Ki Unknown

Bit part

• 
  Choi Shang

  Dong Hyun

  Bit part