A dialect coach is an acting coach who helps an actor design the voice and speech of a character in the context of an on-camera (film, television or commercial), stage (theatre, musical theatre, opera, etc.), radio or animation voiceover production. The dialect coach often does original research on dialects and speech patterns, prepares training materials, provides instruction and works on lines with the actor. A dialect coach will give the actor feedback focusing on issues of credibility, consistency, and clarity. A dialect coach may also be employed to help comedians hone impressions of celebrities, to train non-actor public speakers in vocal character and delivery, or to help singers improve in diction and attain a balance between tone and articulation, especially when singing in a seco