Related Clues:

• Not really sing
• Show without a line?
• Street performer
• Act out in silence
• Silent type
• Marcel Marceau, notably
• Marceau's specialty
• Charades player
• Non-speaking performer
• Act out
• Pretend to sing, perhaps
• Invisible box captive
• Performer in whiteface
• Mouth the lyrics
• Perform in whiteface, perhaps