A content playback apparatus that is configured to (i) record, as a viewer content, a state of a first viewer who is viewing a viewing target content played back on a display or a screen with other viewers, and (ii) play back the recorded viewer content with the viewing target content, said apparatus comprising: a viewing target content obtaining unit configured to obtain the viewing target content; a viewer detecting unit configured to detect the first viewer who is viewing the viewing target content played back by said content playback apparatus; characterized in that the content playback apparatus further comprises: a viewer content selecting unit configured to select a viewer content of a second viewer, from among a plurality of viewer contents of second viewer, a second viewer being a viewer who is different from the first viewer and views a same content as the viewing target content which is being viewed by the first viewer under a temporally or spatially different condition, a viewer content being content obtained from a viewer, wherein the selected viewer content has a matching degree indicating an amount of common points between said first viewer detected by said viewer detecting unit and said second viewer whose viewer content is selected, that is higher than a predetermined threshold, and each of the plurality of viewer contents of second viewer is data indicating video obtained by capturing images of states of the corresponding second viewer, and/or sound data obtained by collecting voice of the corresponding second viewer; and a content playback unit configured to play back the viewing target content obtained by said viewing target content obtaining unit for the first viewer and the viewer content of the second viewer selected by said viewer content selecting unit. a viewing target content obtaining unit configured to obtain the viewing target content; a viewer detecting unit configured to detect the first viewer who is viewing the viewing target content played back by said content playback apparatus; characterized in that the content playback apparatus further comprises: a viewer content selecting unit configured to select a viewer content of a second viewer, from among a plurality of viewer contents of second viewer, a second viewer being a viewer who is different from the first viewer and views a same content as the viewing target content which is being viewed by the first viewer under a temporally or spatially different condition, a viewer content being content obtained from a viewer, wherein the selected viewer content has a matching degree indicating an amount of common points between said first viewer detected by said viewer detecting unit and said second viewer whose viewer content is selected, that is higher than a predetermined threshold, and each of the plurality of viewer contents of second viewer is data indicating video obtained by capturing images of states of the corresponding second viewer, and/or sound data obtained by collecting voice of the corresponding second viewer; and a content playback unit configured to play back the viewing target content obtained by said viewing target content obtaining unit for the first viewer and the viewer content of the second viewer selected by said viewer content selecting unit. a viewer content selecting unit configured to select a viewer content of a second viewer, from among a plurality of viewer contents of second viewer, a second viewer being a viewer who is different from the first viewer and views a same content as the viewing target content which is being viewed by the first viewer under a temporally or spatially different condition, a viewer content being content obtained from a viewer, wherein the selected viewer content has a matching degree indicating an amount of common points between said first viewer detected by said viewer detecting unit and said second viewer whose viewer content is selected, that is higher than a predetermined threshold, and each of the plurality of viewer contents of second viewer is data indicating video obtained by capturing images of states of the corresponding second viewer, and/or sound data obtained by collecting voice of the corresponding second viewer; and a content playback unit configured to play back the viewing target content obtained by said viewing target content obtaining unit for the first viewer and the viewer content of the second viewer selected by said viewer content selecting unit.