Oh My Baby

Director

• 
  Nam Ki Hoon

Screenwriter

• 
  Yang Hyuk Moon

Main Role

• 
  Jang Na Ra

  Jang Ha Ri

  Main Role
• 
  Ko Jun

  Han Lee Sang

  Main Role
• 
  Park Byung Eun

  Yoon Jae Young

  Main Role
• 
  Jung Gun Joo

  Choi Kang Eu Tteum

  Main Role

Support Role

• 
  Kim Hye Ok

  Lee Ok Ran [Jang Ha Ri's mother]

  Support Role
• 
  Kim Jae Hwa

  Shin Jung Hwa ['The Baby' Editor]

  Support Role
• 
  Baek Seung Hee

  Park Yeon Ho ['The Baby' staff writer]

  Support Role
• 
  Park Soo Young

  Choi Hyo Joo ['The Baby' staff writer]

  Support Role
• 
  Jung Lael

  Lee So Yoon ['The Baby' staff writer]

  Support Role
• 
  Lee Mi Do

  Kim Eun Young [Ha Ri's friend]

  Support Role
• 
  Moon Hyun Jung

  Doctor Joo

  Support Role
• 
  Kim Ye Ryung

  Lee Ok Hee [Jang Ha Ri's aunt]

  Support Role
• 
  Lee Han Wi

  Park Jae Han [Jang Ha Ri's uncle]

  Support Role
• 
  Jo Hee Bong

  Nam Soo Cheol [Chief]

  Support Role
• 
  Son Hwa Ryung

  Kim Sang Hee [Photographer]

  Support Role
• 
  Lee Joo Shil

  Soon Nam

  Support Role
• 
  Jeon Jin Ki

  Joo Seung Tae [General manager]

  Support Role
• 
  Yoo Seung Mok

  Kim Cheol Joong [Department head]

  Support Role
• 
  Choi Hong Il

  Mr. Jo [Restaurant owner]

  Support Role
• 
  Han Gap Soo

  [Jang Ha Ri's father]

  Support Role
• 
  Son Eun Seo

  Kang Mok Young

  Support Role
• 
  Yoon Jung Hoon

  Yoon Seung Ho

  Support Role
• 
  Kwon Oh Kyung

  [Health and Welfare Dept. staff] (Ep. 1)

  Support Role
• 
  Jeong Ha Yul

  ['The Baby' Team member]

  Support Role
• 
  Yeom Dong Hun

  Moon Soo [Yi Sang's Urology Specialist]

  Support Role
• 
  Song Da Kyung

  Eun Joo

  Support Role

Guest Role

• 
  Lee Se Rang

  [Department store housewife] (Ep.1,3,5)

  Guest Role
• 
  Lee Tae Hyung

  [Yoon Jae Young's friend] (Ep.2)

  Guest Role
• 
  Wang Ji Hye

  Seo Jung Won (Ep. 2, 7)

  Guest Role
• 
  Kim Jung Hwa

  Jung In Ah (Ep.2)

  Guest Role
• 
  Yeo Hoe Hyun

  [Sperm donor] (Ep. 3)

  Guest Role
• 
  Lee Soo In

  [Mother of baby model] (Ep.1,4,9)

  Guest Role
• 
  Lee Dong Gun

  [Jang Ha Ri's associate] (Ep.3)

  Guest Role
• 
  Jang Gwang

  President Jo [Chairman] (Ep.4)

  Guest Role
• 
  Lee Yong Nyeo

  [Bed and Breakfast owner] (Ep.5)

  Guest Role
• 
  Ki Eun Yoo

  [Jae Young's child as Ha Ri's dream] (Ep. 4)

  Guest Role
• 
  Park Jae Joon

  [Eu Tteum's child as Ha Ri's dream] (Ep.4)

  Guest Role
• 
  Kim Joong Ki

  Sang Min [Couple struggle with infertility] (Ep 6,8,16)

  Guest Role
• 
  Yeon Je Wook

  [Drunk guy] (Ep.6)

  Guest Role
• 
  Moon Woo Bin

  Moon Woo Bin (Ep.5-7)

  Guest Role
• 
  Yoon Ga Hyun

  [Babysitter job applicant] (Ep.5)

  Guest Role
• 
  Lee Seung Chul

  [Guitar instructor] (Ep. 4-5)

  Guest Role
• 
  Lee Woo Joo

  Yoon Jae Young (Young) (Ep.4)

  Guest Role
• 
  Min Dae Shik

  [Jae Young's father] (Ep.4)

  Guest Role
• 
  Kang Jee Seok

  Han Joon [Yi Sang's nephew] (Ep.4)

  Guest Role
• 
  Chae Yoo Ri

  Han Byul [Yi Sang's niece] (Ep.4)

  Guest Role
• 
  Kang Ro Chae

  [Han Yi Sang's sister-in-law] (Ep.4)

  Guest Role
• 
  Kim Yong Jin

  [Jambi Studio staff] (Ep.3)

  Guest Role
• 
  Kwon Hae Sung

  Kim Hyun Seok [Eun Young's husband] (Ep.5)

  Guest Role
• 
  Park Geon

  Jung Joon Young [Eun Young’s brother-in-law](Ep.5)

  Guest Role
• 
  Jeon Hye Bin

  Kang Hyo Joo [Top star] (Ep.7)

  Guest Role
• 
  Choi Yoon Woo

  [Yi Sang's child as Ha Ri's dream] (Ep.4)

  Guest Role
• 
  Lee Tae Geom

  [Doctor] (Ep.7)

  Guest Role
• 
  Ban Hye Young

  [Health checkup staff] (Ep.5)

  Guest Role
• 
  Kim Soo Yeon

  [The Baby reader] (Ep. 9)

  Guest Role
• 
  Noh Young Min

  [Yoon Jae Young's brother] (Ep.4)

  Guest Role
• 
  Yi Sol

  Do Ah [Jae Young's daughter]

  Guest Role
• 
  Oh Yoo Mi

  [Yoon Jae Young's mother] (Ep.4)

  Guest Role
• 
  Yoon Seo Yeon

  Jang Ha Ri [Young] (Ep. 4)

  Guest Role
• 
  Kim Yeon Seo

  Jang Ha Ri [Child] (Ep.1)

  Guest Role
• 
  Jo Hyun Im

  [Department store housewife] (Ep.1,3,5)

  Guest Role
• 
  Lee Da Hae

  Jo Ji Yeon [Couple struggle with infertility] (Ep 6,8,16)

  Guest Role
• 
  Son So Mang

  Editor Park So Mang (Ep.6)

  Guest Role
• 
  Kim Tae Won

  Yoon Nam Joon [teenager mocks Yi Sang] (Ep.4)

  Guest Role
• 
  Kim Beom Jun

  Min Joong Ki [teenager mocks Yi Sang] (Ep.4)

  Guest Role
• 
  Ha Nam Woo

  [Han Yi Sang's brother] (Ep.3-4)

  Guest Role
• 
  Ahn Suk Hwan

  [Man flirting with Hari's mom] (Ep. 16)

  Guest Role
• 
  Kim Soo Ha

  [sitting at the table with Yi Sang] (Ep 16)

  Guest Role
• 
  Chae Hee Su

  [teenager mocks Yi Sang calling him 'Boomer'] (Ep 4)

  Guest Role
• 
  Seo Suk Gyu

  [Cheonwang staff] (Ep 7,15)

  Guest Role
• 
  Shin Hee Gook

  [Cheonwang staff] (Ep 7)

  Guest Role
• 
  Yang Ye Seung

  Jeon Tae Hee [Celebrity] (Ep 11)

  Guest Role
• 
  Park Min Kwan

  [tries to recruit Yi Sang] (Ep 1-2,12)

  Guest Role
• 
  Han Ji Ho

  [Groom] (Ep 2)

  Guest Role
• 
  Park Jin Young

  [Nurse] (Ep. 4)

  Guest Role
• 
  Kim Shi Woo

  Hwi Seo (Ep. 2, 12)

  Guest Role
• 
  Ha Shi Yeon

  [Daycare center staff]

  Guest Role
• 
  An Tae Rin

  Tae Rin (Ep. 13)

  Guest Role
• 
  Lee Ro Eun

  Lee Ro Eun (Ep 12)

  Guest Role
• 
  Kim Do Ha Guest Role
• 
  Pyo Dong Jun

  Seo Yoon

  Guest Role
• 
  Gi So Yoo

  Na Eun

  Guest Role
• 
  Kim Woo Hyun

  [Nurse] (Ep. 4)

  Guest Role
• 
  Kim So Yang

  [Jeweler] (Ep. 10)

  Guest Role
• 
  Kim Ji Su

  [Nurse] (Ep. 16)

  Guest Role
• 
  Ko Dong Ha

  [Boy model] (Ep.3)

  Guest Role
• 
  Lee Jae In

  [Store Manager] (Ep. 14)

  Guest Role
• 
  Hong Ye Ji

  [Jewelry Store sales clerk] (Ep 12)

  Guest Role
• 
  Sung Hyun Mi

  [Hiking club member] (Ep. 6)

  Guest Role
• 
  Son Sung Chan

  [Seo Jung Won's father] (Ep 15)

  Guest Role
• 
  Kim Han Sang Guest Role
• 
  Kim Mi Ra

  [Mother] (Ep. 2)

  Guest Role
• 
  Kim Ha Eon

  [Boy model] (Ep. 3)

  Guest Role
• 
  Kim Young Hee

  [Gambling den woman] (Ep 14)

  Guest Role
• 
  Park Gun

  Jung Joon Young (Ep. 5)

  Guest Role
• 
  Kim Nam Ho

  [Doctor (Ep. 1)

  Guest Role
• 
  Kim Geun Yeong

  [Sang Gon's mother]

  Guest Role
• 
  Jin Seok Jin

  Jin Seok Jin

  Guest Role
• 
  Lee Na Hyun

  [Department store saleswoman] (Ep. 1)

  Guest Role
• 
  Shin In Ah

  (Ep.11)

  Guest Role

Unknown

• 
  Lee Seung Hee Unknown