This definitive music documentary, featuring a greatest hits soundtrack and bounty of classic performance clips, provides an inside look into how Swedish pop group ABBA's music was made, as the former members and various colleagues tell their story from pre-ABBA days onward.
| Actor | Role |
|---|---|
 Agnetha FältskogSelf | Self |
 Benny AnderssonSelf | Self |
 Björn UlvaeusSelf | Self |
 Anni-Frid LyngstadSelf | Self |
 Donny OsmondSelf | Self |
 Neil SedakaSelf | Self |
| AAlex NagleNarrator [USA version] (voice) | Narrator [USA version] (voice) |
 Hugh SkinnerNarrator [UK version] (voice) | Narrator [UK version] (voice) |