What's Up?

Cast

• 
  Lim Ju-hwan

  Jang Jae-Hun

  20 episodes
• 
  Oh Man-seok

  Sun Woo-Yeong

  20 episodes
• 
  Kim Ji-won

  Park Tae-Yi

  20 episodes
• 
  Im Joo-eun

  Oh Doo-Ri

  20 episodes
• 
  Cho Jung-seok

  Kim Byung-Gun

  20 episodes
• 
  DAESUNG

  Ha Do-Sung

  20 episodes
• 
  Jang Hee-jin

  Eun Chae-young

  20 episodes
• 
  Lee Soo-hyuk

  Lee Soo-bin

  20 episodes
• 
  An Seo-hyun

  Oh Doo-ri (young)

  20 episodes
• 
  Song Ok-suk

  Jang Jae-heon's mother

  20 episodes
• 
  Kim Mi-kyung

  Professor Yang Soo-jung

  20 episodes

See full cast and crew on TMDB

Where to watch

Not available to stream, rent or buy in the United States right now.

Availability in the United States, from JustWatch.