Irene (Bae Joo-hyun): 裵柱現

Joo > 柱 (기둥 주/버틸 주): A pillar/To endure

Hyun > 現 (나타날 현): To appear

Overall meaning: The appearance of a pillar

Seulgi (Kang Seul-gi): Native Korean name, no Hanja characters.

“Seul-gi” means “wisdom” in Korean.

Wendy (Son Seung-wan): 孫承完

Seung > 承 (이을 승): To inherit

Wan > 完 (완전할 완): Complete/Perfect

Overall meaning: To inherit perfectly

Joy (Park Soo-young): 朴秀英

Soo > 秀 (빼어날 수): Excellent

Young > 英 (꽃부리 영/뛰어날 영): Flower petal/Heroic

Overall meaning: An excellent flower petal/Excellent Heroism

Yeri (Kim Ye-rim): 金藝琳

Ye > 藝 (재주 예/심을 예): Talent/To plant

Rim > 琳 (옥 림): Jade

Overall meaning: Talented jade