While Joaquin Phoenix is in nearly every frame of the spike Jonze movie Her, Scarlett Johansson gives a stellar voice-over performance Phoenix's A.I. love interest. She's so good, in fact, that she put us in the mood to hat-tip other great vocal portrayals in live-action cinema - actors that we hear but do not see.
NOTE: Great though he may be, a talent like Andy Serkis doesn't apply, here, as his body and movement are used to create characters like Gollum or Ceasar the ape. So who made the cut in our top ten? Read on to see our favorite picks for the 10 best off-screen performances in film: