The Young Guns

Yang En You

Chinees

Lighting up the Stars [M] - (angry biter that carries a spear)

Yoo Eun Mi

Zuid-Koreaans

Trot Lovers (FL's sister)

Park So Yi

Zuid-Koreaans

• The ATypical Family (ML's daughter)
• See You in My 19th Life (young FL in 19th Life)
• She Would Never Know (ML's niece)

Oh Ah Rin

Zuid-Koreaans

The Last Empress (young princess, emperor's kid from 1 night stand)

Gi So Yoo

Zuid-Koreaans

Unlock My Boss (CEO's daughter)

Kim Tae Yeon

Zuid-Koreaans

Missing: The Other Side Season 2 (youngest ghost @ village)

Kim Yoon Seol

Zuid-Koreaans

Castaway Diva (FL young)

Kim Do Eun

Zuid-Koreaans

Welcome to Samdalri - youngest daughter's daughter

Fu Bo Han

Chinees

Who rules the World (survivor of whole family massacre)

Han Chang Min

Zuid-Koreaans

Poong, The Joseon Psychiatrist (boy saved by Sr Dr in country, part of crew)

Ahn Ji Ho

Zuid-Koreaans

 Gyeongseong Creature (ML's employee) / Rebound [M] - (Energetic freshman) / Inseparable Bros [M] - (young quadriplegic boy) / Vanishing Time: A Boy Who Returned [M] - (-)

Choi Ro Woon

Zuid-Koreaans

Plus Nine Boys (actor played 9-year-old @ age 7) / Big (Hospital patient w/girl friend)

Park Sang Hoon

Zuid-Koreaans

Jung Shi Yool

Zuid-Koreaans

Once Upon a Small Town (he & little girl BFFs) / The King: Eternal Monarch (he was 4 yrs old & grew up w/8 yr old future king)

Jang Sun Yool

Zuid-Koreaans

Missing: The Other Side (kid missing his mom)

Kim Kang Hoon

Zuid-Koreaans

When the Camellia Blooms

Haru

Japans

My Boyfriend in Orange (FL's younger bro)

Park Jae Joon

Zuid-Koreaans

Pachinko (FL's eldest son @ 7 years old)

Moon Woo Jin

Zuid-Koreaans

• The ATypical Family (classmate, crush on ML's daughter)
• Castaway Diva (ML young)

Hong Dong Young

Zuid-Koreaans

The Matchmakers (Crown Prince)

Seo Woo Jin

Zuid-Koreaans

The Midnight Studio (a little boy ghost)

Kurokawa Souya

Japans

Teasing Master Takagi-san - ML

Mi Ke

Chinees

Warm Hug (Young ML)