Related Clues:

• Street performers
• Palefaces?
• Mimics
• Silent screen stars?
• Dumb performers
• Silent performers
• Their actions speak for them
• Invisible box captives
• Silent ones
• Plays charades, e.g.
• Silent artists
• No one tells them to shut up
• They're speechless
• Wordless performers
• Marcel Marceau and the like