Pemeran My Holo Love

Yoon Hyun Min

as Go Nan Do / Holo

Pemeran Utama

Go Sung Hee

as Han So Yeon

Pemeran Utama

Hwang Chan Sung

as Baek Chan Sung [Vice-president of Magic Mirror]

Pemeran Pembantu

Kim Yong Min

as [Assistant]

Pemeran Pembantu

Son Jong Hak

as Nam Gi Ho [IT crimes Detective]

Pemeran Pembantu

Jung Yeong Gi

as Jo Jin Seok [Senior Programmer, GIO Labs]

Pemeran Pembantu

Jung Yeon Joo

as Ji Na [Detective]

Pemeran Pembantu

Nam Myeong Ryeol

as Baek Nam Gyu

Pemeran Pembantu

Lee You Mi

as Ji Hye [Prism employee]

Pemeran Pembantu

Yang Dae Hyuk

as Lee Dong Sik [Prism employee]

Pemeran Pembantu

Gong Min Jung

as Jeong Ah [Prism employee]

Pemeran Pembantu

Park Geon Gyu

as [GIO Labs staff]

Pemeran Pembantu

Choi Yeo Jin

as Go Yoo Jin [Nan Do's sister]

Pemeran Pembantu

Lee Jung Eun (이정은)

as [So Yeon's mother]

Pemeran Pembantu

Kang Seung Hyun

as Yoo Ram [Stewardess / So Yeon's friend]

Pemeran Pembantu

Kim Soo Jin

as [Nan Do's mother]

Pemeran Pembantu

Jung Do Won

as Mr. Jeong [Chan Sung's aide]

Pemeran Pembantu

Baek Jin Hee

as [Voice] (Ep. 6)

Bintang Tamu

Ahn Hye Kyung

as (Ep. 6 [voice] & 10)

Bintang Tamu

Min Chae Eun

as [Idol]

Bintang Tamu

Yoon Dan Bi

Bintang Tamu

Sung Min Jun

as Ko Nan Do (Child)

Bintang Tamu

Mi Seok

as [minion after Go Yoo Jin] (Ep 1)

Bintang Tamu

Ahn Se Ho

as [minion driver after Go Yoo Jin] (Ep 1)

Bintang Tamu

Kim Ha Yun

as Han So Yeon (Young)

Bintang Tamu

Han Soo Ho

as Mr. Kim [GIO Labs Security] (Ep 5)

Bintang Tamu

Moon Ju Bin

as Go Yoo Jin (Young)

Bintang Tamu

Eun Ye Jun

as [Ice skating boy] (Ep. 5)

Bintang Tamu

Kim Hak Seon

as [Prism Marketing Director]

Bintang Tamu

Kim Ik Tae

as Police Chief (Ep 10)

Bintang Tamu

Choi Gyo Shik

as [Incheon International Airport security guard] (Ep. 11)

Bintang Tamu

Ok Joo Ri

as Holo [In disguise] (Ep. 4)

Bintang Tamu

Park Seon Woo

as [Waiter] (Ep. 3)

Bintang Tamu

Kim Bo Yun

as Eugene

Bintang Tamu

Park Jun Hyuk

as [Police officer]

Bintang Tamu

Lee Ki Chan

as Yeon Kang Woo [So Yeon's boss] (Ep. 1–4)

Bintang Tamu

Kim Yoon Hong

as Father Go [Nan Do and Yoo Jin's father] (Ep 12)

Bintang Tamu

Park Seong Kyun

as [Go Nan Do's lawyer] (Ep. 6)

Bintang Tamu

Lee Sang Yeob

Sutradara

Yoon Jong Ho

Sutradara

Kwon Gwi Deok

Martial Arts Director

Ryu Yong Jae

Screenwriter

Kim Hwan Chae

Screenwriter

Choi Sung Joon

Screenwriter