All that I can think of right now are quick changes. You know how you're watching live theater, and the character exits and re-enters seconds later in something completely different? Yeah, well, there's a team of trained people backstage in a timed choreographed dance making that happen. The show I'm costuming now, The Legend of the Ring, is an adaptation of the entire Wagner Ring Cycle. That's over 18 hours of opera lopped to 3.5 hours. Each of the performers plays multiple characters, and they are constantly zipping on and offstage in completely different costumes.
Jay Hunter Morris, below center, later took on this role at San Francisco Opera and The Met.
There's a similar onstage change for Valentina Osinski, below right, prior to this scene.