Sometimes, it's the small surprises that brighten our day, especially for fans of K-dramas. The thrill of spotting an unexpected cameo can add an extra layer of enjoyment to our viewing experience. In the vast universe of K-dramas, certain cameo appearances stand out not just for their star power, but for the humor and delight they bring to the series. Let's dive into some of the most memorable and funniest cameos that have graced our screens.

1. "Queen of Tears" - Oh Jung Se and Kim Soo Hyun: Kicking off with a bang, "Queen of Tears" features a hilarious reversal of roles for Oh Jung Se and Kim Soo Hyun, famously known as one of the best sibling duos from "It's Okay to Not be Okay." This time, it's Kim Soo Hyun who finds himself in need of Oh Jung Se's help and guidance, delivering laughs and showcasing their dynamic chemistry once again.

2. "Wedding Impossible" - Jung Kyung Ho: Jung Kyung Ho returns with his unmistakable charm as a playboy on a blind date in "Wedding Impossible," reminding fans of his role in "Crash Course Romance." His effortless portrayal of a charismatic yet slightly mischievous character adds a spark of humor to the drama.

3. "Flex X Cop" - Ha Yoon Kyung: Ha Yoon Kyung reprises a role reminiscent of her character from "See You in My 19th Life," but with a twist. This time, she's an ex-fiancée with anger management issues who unexpectedly finds herself paired with Ahn Bo Hyun, creating a humorous and unexpected reunion.

4. "Weightlifting Fairy Kim Bok Joo" - Lee Jong Suk: Lee Jong Suk's cameo in "Weightlifting Fairy Kim Bok Joo" is a treat not to be missed. His unexpected appearance adds a delightful surprise for fans, further enriching the charm and appeal of the series.

5. "Crash Landing On You" - Kim Soo Hyun: Kim Soo Hyun steals the scene with his cameo in "Crash Landing On You." Dressed in a training set, he brings a dose of humor and unexpected joy to the drama, showcasing his versatility and comic timing.

6. "Start Up" - Yeo Jin Goo: Yeo Jin Goo lends his voice to an artificial intelligence character, offering wisdom to Kim Seon Ho's character. His physical appearance towards the end, as he seeks an investor for his own startup, wraps up the series with a clever twist and a nod to the show's entrepreneurial spirit.

These cameos are a testament to the playful and interconnected world of K-dramas, where actors can step into new roles, surprise fans, and bring an extra layer of enjoyment to already compelling stories.