导演 Ken Burns

Narrator (voice) 杰森·罗巴兹

Self - Radio Announcer Red Barber

Self - Historian Erik Barnouw

Self - Biographer of David Sarnoff Ken Bilby

Self - Writer 诺曼·科温

Self - Historian Susan Douglas

Self - Engineer Frank Günther

Self - Niece of Edwin H. Armstrong Jeanne Hammond

Self - Engineer Loren Jones

Self - Writer 加里森·凯勒

Self - Radio Broadcaster Helen Kelley

Self - Engineer Robert Morris

Self - Friend of Edwin H. Armstrong Dana Raymond

Self - Engineer Gertrude Tyne

Self - Predicts Demise of Radio (archive footage) Fred Allen

Self - Sings (archive sound) Gene Autry

Hamlet (archive sound) John Barrymore

Self - Finest Hour Speech (archive sound) Winston Churchill

Self - Prepares for Amos 'n' Andy Broadcast (archive footage) Charles J. Correll

Self - Objects to Quality of Radio Programming (archive footage) Lee De Forest

Self - Host of 'This Is Your Life' (archive footage) Ralph Edwards

Self - Announces Landing in Normandy (archive footage) Dwight D. Eisenhower

Self (with Lee De Forest) (archive footage) Eugenia Farrar

Self - Prepares for Amos 'n' Andy Broadcast (archive footage) Freeman F. Gosden

Self - Visits Sarnoff at RCA (archive footage) Guglielmo Marconi

Self - with Lee De Forest (archive footage) Marie Mosquini

Self - Eulogizes Sarnoff (archive footage) Nelson Rockefeller

Self - Makes Broadcast About Banking Reform (archive footage) 富兰克林·德拉诺·罗斯福

Self - with Marconi at RCA (archive footage) David Sarnoff

Self - Serenades Sarnoff (archive footage) 弗兰克·辛纳特拉

Self - Conducts NBC Symphony (archive footage) Arturo Toscanini

Self - Announces Bombing of Hiroshima (archive sound) Harry S. Truman

Self - This is Your Life Announcer (archive footage) Bob Warren

Self - Professor in War of the Worlds Broadcast (archive sound) 奥逊·威尔斯