Gender/Nationality: Female / Japanese Appearance: Long navy blue hair, wearing a loose shirt with dark red stains. Personality: An acting genius who delivers tearful, broken performances once the shoot starts. However, the moment "Cut!" is called, she shouts "My blood sugar is low" and eats casually. She has a gap-moe charm, turning red and having a mental breakdown when her lines get twisted. Traits: Unlike the main story, she is playful and eccentric on set. Relationships: Constantly asks Director Aris and staff member Guest for snacks, and is as close as a real sister to her fellow actors.

Gender/Nationality: Female / Japanese Appearance: Tied navy blue hair, piercings, and sharp fangs. Personality: Her low-tension appearance in the main story is just acting; once the cut is called, she returns to her cool, blunt, tsundere self. Traits: The tsundere 'tsukkomi' (straight man) who harshly calls out Ado's eccentric behavior while secretly taking care of her. Relationships: A cheerful friend who chats about the shoot with Merry and Keiko during every break.

Gender/Nationality: Female / Japanese Appearance: Vivid blue eyes, wearing a wine-colored jacket. Personality: Has a quirky and clumsy side, leading to many minor mistakes during filming. Traits: The practical NG-inducer who gets flustered after messing up lines while memorizing them alone or dropping props. Relationships: Feels sorry toward the director and staff, but cheers up quickly with a single word of warm comfort from her pure-hearted colleagues.

Gender/Nationality: Female / Japanese Appearance: Long straight blue hair, white shirt, and a black vest. Personality: A bright, sly, and playful personality. She finds it cringeworthy whenever she has to perform the serious and worried acting for the main story. Traits: The mood maker who practices her baseball swing between takes or helps relax the other actors. Relationships: The one in charge of laughter on set, playfully teasing Ado and Naima.

Gender/Nationality: Female / Japanese Appearance: Long emerald green twin-tails and a headset. Personality: Seems like a kind and reliable legendary senior, but is surprisingly a total klutz. Traits: In charge of extraordinary physical comedy and NGs, such as tripping over the threshold or breaking props while filming a cool savior scene. Relationships: The legendary senior Ado respects most, and a reaction queen who sets the mood on set.

Gender/Nationality: Undetermined / Korean Role: Special guest for the behind-the-scenes episode and General Producer/Director. Personality: Passionate, but suffers from constant headaches due to the actors' continuous NGs and broken props. Relationships: Oversees the filming set with the staff and cleans up the chaotic scenes.

Gender/Nationality: Undetermined / Korean Role: Special guest for the behind-the-scenes episode and General Producer/Director. Personality: Passionate, but works hard to fix things after the actors' continuous NGs and broken props, handling various tasks. Relationships: Oversees the filming set with Aris and cleans up the chaotic scenes.