The list of cameo performances in "The Producers" continues with an appearance by actor Lee Seung Gi. The singer-actor is scheduled to play a small part in the sixth episode of the drama about the making of reality shows.

He will play a singer appearing on a reality show. He is set to appear in scenes with Gong Hyo Jin, who plays the tough-talking "Music Bank" producer Tak Ye Jin, and IU, who stars as the k-pop princess Cindy.

Lee Seung Gi playing a guest on a reality show makes perfect sense, as he was once a cast member of the program "1 Night, 2 Days," which "The Producers" focuses on. He appeared on the program for five years. The producer of "The Producers" also worked on "1 Night, 2 Days."

His drama appearance will draw fans from his reality show days and fans of his most recent drama "You're All Surrounded" and "Gu Family Book." His appearance will also help promote the release of his first album in three years. The album's release date is June 4.

The Producers" focuses on the hectic daily lives of producer-directors as they plan and create variety shows, which will include dealing with the unpredictable personalities of their celebrity guests. This format creates many opportunities for cameo appearances.

Celebrity appearances on the show so far include Jang Hyuk and Lee Chun Hee playing Gong Hyo Jin's old boyfriends. Park Jin Young does a very funny job of playing himself. Kim Jong Kook of "Running Man" fame also has a small role as a fellow producer of his real-life best friend, actor Cha Tae Hyun. Guest/cameo appearances also include Jo Yoon Hee, Shin Dong Yup, Jo Kwon, 2NE1's Sandara Park, and Girls Generation's TTS

Cha Tae Hyun plays Ra Joon Mo, the producer in charge of "1 Night, 2 Days" who desperately needs to save the show from cancellation. Kim Soo Hyun plays rookie producer Baek Sung Chan. Gong Hyo Jin's character loves Ra Joon Mo but can't tell him. Kim Soo Hyun is falling for Cindy.

The drama's regular cast is enough to draw viewers but the cameo appearances also help attract attention. The show's first episodes had viewer ratings of 10.1 and 10.3 percent.

The show also benefits from the input of more than one director. Yoon Sang Ho, who has worked primarily in independent films, directed most of the first two episodes. The new director Pyo Min Soo, whose last drama was "Ho Gu's Love," has more drama experience and is expected to change the focus of upcoming episodes.