Full cast of Butterfly

Daniel Dae Kim

David Jung

6 episodes

Reina Hardesty

Rebecca

6 episodes

Kim Ji-hoon

Gun

6 episodes

Piper Perabo

Juno

6 episodes

Louis Landau

Oliver

6 episodes

Kim Tae-hee

Eunju Kim

6 episodes

Sean Dulake

Hollis

6 episodes

Charles Parnell

Senator Dawson

6 episodes

Seoyeon Jang

Moon

6 episodes

Sung Dong-il

Doo Tae Kim

2 episodes

Lee Il-hwa

Young Sil Kim

2 episodes

Gina Theresa Williamson

Vicky Linwood

2 episodes

Park Hae-soo

Yong Shik Choi

2 episodes

Sung Joon

Sanghoon

1 episode