The world of K-dramas is filled with iconic roles that define actors' careers, but sometimes, the path to those roles involves near misses and "what ifs." Several actors have been considered for or even offered parts in K-dramas that went on to become massive hits, ultimately changing the trajectory of those involved. Here are some notable examples of actors who almost starred in iconic K-dramas:

Park Seo Joon in My Love From the Star (2013)

Before becoming a household name with dramas like Itaewon Class and What's Wrong with Secretary Kim, Park Seo Joon was reportedly considered for the role of Do Min-joon, the centuries-old alien in My Love From the Star. However, he turned down the role, citing similarities to his previous work. Kim Soo-hyun eventually took on the part, and his portrayal of the stoic yet tender Do Min-joon became a blueprint for fantasy male leads. While Park Seo Joon might have brought more physicality and playfulness to the character, Kim Soo-hyun's stillness captivated audiences.

Park Bo Gum in Itaewon Class (2020)

Park Bo Gum, known for his gentle and empathetic image, was reportedly considered for the lead role of Park Sae-ro-yi in Itaewon Class. However, he declined the role due to his enlistment. Park Seo Joon was then cast, defining the series with his grit and determination. His portrayal gave the underdog story a powerful edge, making viewers believe in Sae-ro-yi's ability to build an empire from scratch. Some have speculated that Park Bo Gum's interpretation might have been gentler, while Park Seo Joon's brought a rebellious spirit to the character.

Song Joong-ki in Kingdom (2019)

Before starring in Space Sweepers and Vincenzo, Song Joong-ki was reportedly offered the role of the crown prince in the zombie historical thriller Kingdom. Ju Ji-hoon ultimately took the role, delivering a performance that was both royal and feral. His gaunt appearance and intense eyes perfectly matched the series' claustrophobic atmosphere. It is believed that Song Joong-ki might have brought more empathy to the role, while Ju Ji-hoon made survival look regal.

Jo In-sung in Goblin (2016)

Jo In-sung, a celebrated actor known for his roles in That Winter, the Wind Blows and It's Okay, That's Love, was considered for the lead role in the fantasy romance Goblin. However, he turned down the offer, and the role went to Gong Yoo, who delivered a memorable performance as the immortal goblin.

Rowoon in True Beauty (2020)

Rowoon, the SF9 member and actor, was reportedly considered for the role of the stoic bad boy in True Beauty. However, due to commitments to other projects, the role went to Cha Eun-woo. Cha Eun-woo's ethereal looks and understated acting style made the character feel more mythical. Rowoon's warmth might have softened the series, while Cha Eun-woo's precision gave it a fan-fiction-like quality.

These are just a few examples of the many casting decisions that could have changed the course of K-drama history. While it's impossible to know how these dramas would have turned out with different actors in the lead roles, it's fascinating to consider the possibilities and appreciate the performances that ultimately defined these iconic series.