To thrive as a Costume Design Intern, you need basic knowledge of costume construction, sewing techniques, and a background in fashion design or theater arts. Familiarity with tools such as sewing machines, fabric cutting software, and design programs like Adobe Illustrator is often essential. Strong organization, creativity, attention to detail, and clear communication help you excel in this collaborative environment. These skills ensure you can efficiently support the costume team, contribute innovative ideas, and adapt to the fast-paced demands of theater or film productions.