Oh My Venus — Characters & Cast

Initially driven to survive physical pain and avoid familial conflict; evolves into wanting to protect and build a healthy future with Joo-eun.

Begins as a guarded, hyper-disciplined trainer avoiding his chaebol family destiny due to childhood trauma. Through coaching and loving Joo-eun, he learns to confront his psychosomatic knee pain, assume corporate leadership on his own terms, and accept emotional support during his lowest moments.

Initially seeks weight loss to regain dignity and spite her ex-partner; shifts to pursuing authentic health, self-respect, and mutual healing with Young-ho.

Transitions from an overworked, insecure lawyer seeking to prove herself after a painful breakup into a confident, self-actualized woman who values internal vitality over external approval.

Desires security and recognition away from the shadow of past achievements.

A former national swimmer whose 15-year relationship with Joo-eun deteriorates into routine and guilt. He leaves her for Soo-jin, grappling with his own moral compromises and professional ambitions before finding closure and mutual respect.

Strives to validate her worth and escape the lingering shadow of past rejection.

Once Joo-eun's overweight best friend who suffered from low self-esteem, she undergoes extreme weight loss and rises to become Joo-eun's superior at the law firm. Beneath her glamorous exterior, she harbors deep insecurities until she reconciles with Joo-eun.

To honor Young-ho's guidance and find his biological roots.

A troubled orphan saved by Young-ho who becomes an elite MMA champion. Over the series, he reconnects with his estranged mother and finds romantic courage with celebrity Jang Yi-jin.