A content playback apparatus (100) includes: a viewing target content obtaining unit (20) obtaining the viewing target content; a viewer detecting unit (10) detecting a first viewer who views the viewing target content played back by the content playback apparatus; a viewer content selecting unit (204) selecting, from among viewer contents, a viewer content having a matching degree higher than a predetermined threshold, the matching degree indicating an amount of common points between the first viewer detected by the viewer detecting unit and a second viewer who views a same content as the viewing target content under temporally or spatially a different condition, and each of the viewer contents including information of video or sound of the second viewer; and a content playback unit (30) playing back the viewing target content obtained by the viewing target content obtaining unit and the viewer content selected by the viewer content selecting unit.