Im Si-wan's Chaebol Heir Has Viewers Talking—About the Way He Speaks

A thriller-romance usually invites guesses about the culprit. This time, some viewers were also trying to work out what they thought of the male lead's deliberately distinctive delivery.

tvN's weekday drama Love in Disguise premiered on October 19, 2026. Im Si-wan plays Yoon Yi-jun, a wealthy heir suspected in a murder case; Seol In-ah plays Kang Jae-hee, a detective working undercover as his secretary. After the premiere, discussion turned to Im's performance style. A link to a related post from tvN drama's official X account also drew substantial attention in a Korean community on October 20.

The core question is whether an unusual speaking style makes the character more convincing or harder to connect with. Coverage has noted praise for the actor's expressions and chemistry alongside criticism that his intonation and gestures feel exaggerated. The same performance is being read in contrasting ways.

Contemporary coverage describes a mixture of approval and discomfort: favorable comments about facial expression and chemistry, and reservations about the delivery of dialogue. Traffic to one online discussion does not represent the views of every viewer.

The character begins as a distrustful heir, while the heroine must stay close to him as part of an investigation. That setup makes mannerisms especially important to both comedy and tension. The debate also raises a forward-looking question: will later episodes make the performance's unusual qualities feel more intentional?

The broadcaster describes the show as a thriller-romance between a murder suspect and an undercover detective. Reporting citing Nielsen Korea placed episode one's nationwide paid-platform household rating at 5.558%, versus 4.713% for episode two. Those numbers alone cannot establish that viewers switched off because of a particular acting choice.

First impressions are not a verdict on an entire series. As the character develops, viewers may interpret his performance differently. Audience reactions and ratings trends should be considered separately from unproven claims about causation.