As "The Heirs" reaches its end, the cast show their gratitude towards the staff and fans of the drama through heartfelt handwritten letters.

The messages from Lee Min Ho, Park Shin Hye, Kim Woo Bin, and the rest of the main cast were included in the final scripts, and these were handed out to everyone on set. When theyr received the script, the cast reportedly expressed their sadness and said, "The scripts hold our memories."

Being the main character of the drama, Lee Min Ho wrote, "It was such an honor to be a part of a drama that made 2013 an amazing year. I hope we all reach our goals and dreams, fighting! Kim Tan, you're so cool~"

Main heroine Park Shin Hye said, "Thank you for working so hard these past four months. I applaud your hard work and dedication in overcoming stress. Thank you and I love you all! I will miss everyone so much."

Kim Woo Bin wrote, "It made me happy to work with such amazing people. I hope we would see each other in other projects. I will miss you all!" and Kim Ji Won said, "I was able to transform into Rachel with your guidance and support. Thank you."

Krystal wrote also expressed her thanks and said, "I hope you end the year well and please always remember Bona! Happy New Year, everyone!" while Kang Min Hyuk said, "I thank the director, writer and staff for their guidance. I will never forget Chan Young," and Park Hyung Sik wrote, "I was always happy during filming because of the energy of the team. Thank you for all your hard work."

The production company Hwa and Dam Pictures also gave their thanks by saying, "We applaud all the cast and staff of the drama who were able to bear the weight of the crown during the past four months."

"The Heirs" aired its last episode on December 12.