Eight Film Buffs? Filmographies of the Eight Actors Who Bring Life to "Everyone Is Fighting Their Own Sense of Worthlessness" (aka Mojamussa)

There are dramas that make you sympathize more with the supporting characters than with the protagonist. 〈Everyone Is Fighting Their Own Sense of Worthlessness〉, nicknamed "Mojamussa" (a shorthand title), centers on a group of eight filmmakers. The eight friends met in a college film club and now work in the film industry, but only the protagonist, Hwang Dong-man (Koo Kyo-hwan), has been trying to become a director for ten years. Perhaps because of that history, Dong-man keeps making tone-deaf remarks that unsettle the others, and at one point the group almost becomes seven. While the story later reveals Dong-man’s motives and makes him more understandable, viewers watching the group of eight put up with Dong-man’s behavior likely felt sympathy for them. Here are the actors who fill the series with characters who can feel both villainous and pitiable — ultimately very human.

Jeon Bae-soo as Park Young-soo

Jeon Bae-soo, who has often been seen in fatherly roles — from being known as "Woo Young-woo’s dad" to being called a "national dad" — plays the eldest member of the group, Park Young-soo. Though he is the senior, he isn’t particularly harsh by nature and initially tries to mediate the calls to push Dong-man away, but he eventually delivers some harsh words himself. Jeon Bae-soo has steadily worked in supporting roles since the 2000s: he impressed audiences as Woo Kwang-ho in 〈Extraordinary Attorney Woo〉, as Choi Cheon-gap (father of Choi Ae-ra) in 〈Fight for My Way〉, as Kim Moon-geun (father of Kim So-yong) in 〈Mr. Queen〉, and as Nam So-ju (father of Nam On-jo) in 〈All of Us Are Dead〉, leaving a strong impression in father roles. He’s also been noticed for parts such as Choi Yoon-soo in 〈Stranger〉 and Deok-gi in the film 〈The Wailing〉.

Oh Jung-se as Park Kyung-se

If you look closely, it seems the writer especially crafted Park Kyung-se: he’s the character who essentially opens 〈Everyone Is Fighting Their Own Sense of Worthlessness〉 rather than the protagonist. Park Kyung-se reacts more sensitively than anyone to Dong-man’s tone-deaf and arrogant remarks; according to Dong-man, Park Kyung-se was the member who complained the most when they were younger. Oh Jung-se portrays Park Kyung-se’s tormented side in a performance that can be both comically absurd and deeply relatable, voicing viewers’ frustrations. Oh is prolific and always memorable, making it hard to choose highlights: he was Noh Gyu-tae in 〈When the Camellia Blooms〉 and Moon Sang-tae in 〈It's Okay to Not Be Okay〉 — roles that helped him win the Baeksang Arts Awards TV category Best Male Supporting Actor two years running. His Kwon Kyung-min in 〈Stove League〉 showed multi-dimensional villainy, and his Yeom Hae-sang in 〈Revenant〉 revealed a serious, intense side. After 〈Everyone Is Fighting Their Own Sense of Worthlessness〉, he’s set to transform in the film 〈Wild Thing〉 as a 1990s ballad king — that should be an amazing change of pace.

Kang Mal-geum as Go Hye-jin

Go Hye-jin is the de facto leader and the one who really calls the shots among the group. She ultimately bars Dong-man from their regular get-together spot—effectively making the group's hangout off-limits to him—because she can no longer tolerate her husband Park Kyung-se’s repeated flare-ups aimed at Dong-man. Yet when Byun Eun-ah (Go Yoon-jung) shows signs of interest in Dong-man, Go Hye-jin is the first to beam with delight. Kang Mal-geum climbed steadily from the theater stage to film and television and continues to leave strong impressions. After the short film 〈Free Acting〉, she gained wider recognition with 〈Lucky Chan-sil〉, and she has delivered excellent performances across genres and characters — for example, Hye-bin Hong in 〈The Red Sleeve〉, Do Soo-kyung in 〈Military Prosecutor Doberman〉, and the innkeeper in 〈I Was Completely Fooled〉. Her consistently fitting portrayals make each new project highly anticipated.

Shim Hee-seop as Lee Jun-hwan

Lee Jun-hwan is arguably the only member of the group Dong-man can truly call a friend. He’s often the one who calls first, buys the meals, and tolerates Dong-man’s remarks. Because of that, Park Kyung-se once labeled him "a person without taste," an insult especially stinging to someone in the directing profession — yet Jun-hwan lets it slide without visible resentment. In a cast of sharp, brittle personalities, Jun-hwan brings a soothing presence while also hinting at a possibly painful past. Shim Hee-seop first drew attention in his debut year as Lieutenant Yoon Sung-doo in 〈The Attorney〉, then appeared on television as Hong Gil-hyun (Hong Gil-dong’s older brother) in 〈Rebel: Thief Who Stole the People〉 and as Prosecutor Ju Ha-min in 〈Children of a Lesser God〉. Much of his career has focused on independent films such as 〈Wavering Waves〉, 〈Mate〉, and 〈Snobs〉, and he left a strong impression as Team Leader Lee Jun-ho in the film 〈Next Sohee〉.

Park Ye-ni as Choi Hyo-jin

Choi Hyo-jin is a member of the group and a PD at the production company "Choi Film." She frequently clashes with junior colleague Byun Eun-ah, who actually has more affection for Dong-man than he does for himself. Much of their conflict is self-inflicted by Hyo-jin, who repeatedly complains about Dong-man at work, prompting Eun-ah, who shares the same space, to push back. Unlike the almost unrealistically unlikeable Hwang Dong-man, Choi Hyo-jin comes across like a realistic office worker — imperfect and not always likable, but believable. Park Ye-ni is one of the busiest rising actors of the past five years: she appeared as an interpreter in 〈Hospital Playlist〉 thanks to her fluent English, and has also been in 〈Missing: The Other Side〉 and 〈The Good Detective 2〉. She gained notice in the film 〈She Died〉 as the BJ Horugi and in the drama 〈Hounds〉 as Kang Tae-young. In 2025 she kicked off a busy year with 〈Trauma Center〉 as Song Ah-gnes and appeared in 〈Running Mate〉, 〈S-Line〉, 〈One Hundred Memories〉, and 〈It Will Come True〉. It’s also interesting to compare her performance in the newly released season 2 of 〈Hounds〉 to her earlier work. Not a drama or film, but a representative piece is a commercial for Switzen in which she and actor Kim Nam-hee play "first-time parents."

Bae Myung-jin as Lee Gi-ri (left), Jo Min-guk as Woo Seung-tae

Bae Myung-jin as Lee Gi-ri

Gi-ri doesn’t have major conflicts with Dong-man, but like many in the group he tends to dislike him. Since he’s often with Park Kyung-se, he frequently ends up stepping in to deal physically with the fallout after fights between Dong-man and Kyung-se. Bae Myung-jin appeared as Heo Young-gyu in 〈Dr. Romantic〉, appearing in both season 1 and season 2, during which his character’s personality shifted and his screen time increased. After appearing in 〈Shark: The Beginning〉 in 2021, he returned in 2025’s 〈Shark: The Storm〉 as Lee Won-jun, showing a continuing relationship with the series. He’s active in genre pieces like 〈The Murderer's Shopping List〉, 〈Black Knight〉, and 〈The Worst Evil〉, but he can also perfectly embody innocent, simple characters like Cha Eun-woo in 〈Welcome to Samdal-ri〉.

Jo Min-guk as Woo Seung-tae

Woo Seung-tae’s round black glasses can’t hide his irritation with Dong-man. He tries to retort once but ends up getting scolded instead. Like Gi-ri, he somehow becomes part of Dong-man’s cleanup crew. Jo Min-guk appeared in director Park Hae-young’s previous work 〈My Liberation Notes〉 as Seok Jeong-hoon, and has continued to show range in dramas such as 〈Hip Hage〉, 〈Melo Movie〉, 〈More Beautiful Than Heaven〉, and 〈Waiting for Gyeongdo〉. In recent episodes of 〈Everyone Is Fighting Their Own Sense of Worthlessness〉, he even received a sharp rebuke from Young-soo, so perhaps we’ll begin to see him change little by little.