| LLena ZavaroniSelf (archive footage) | Self (archive footage) |
 Erin ArmstrongLena Zavaroni | Lena Zavaroni |
| VVictor ZavaroniSelf, Lena's Father | Self, Lena's Father |
| MMargaret ZavaroniSelf, Lena's Cousin | Self, Lena's Cousin |
| TTommy ScottSelf, Record Producer | Self, Record Producer |
| FFraser GilliesSelf, Isle of Bute Resident | Self, Isle of Bute Resident |
| JJohn MacLeodSelf, Isle of Bute Resident | Self, Isle of Bute Resident |
| NNeil ReidSelf, Former Child Star | Self, Former Child Star |
 Bonnie LangfordSelf, School Friend (Italia Conti) | Self, School Friend (Italia Conti) |
 Lisa MaxwellSelf, School Friend (Italia Conti) | Self, School Friend (Italia Conti) |
| CCarmen CoriSelf, Friend and House Mate | Self, Friend and House Mate |
| MMike CrispSelf, Former BBC Employee | Self, Former BBC Employee |
| JJohnny MansSelf, Friend | Self, Friend |
 Jon CulshawHughie Green, Cast of Lena, Edinburgh Fringe (uncredited) | Hughie Green, Cast of Lena, Edinburgh Fringe (uncredited) |
| AAlan McHugh Victor Zavaroni, Cast of Lena, Edinburgh Fringe (uncredited) | Victor Zavaroni, Cast of Lena, Edinburgh Fringe (uncredited) |
| JJulie CoombeHilda Zavaroni, Cast of Lena, Edinburgh Fringe (uncredited) | Hilda Zavaroni, Cast of Lena, Edinburgh Fringe (uncredited) |
| HHelen LoganDorothy Soloman, Cast of Lena, Edinburgh Fringe (uncredited) | Dorothy Soloman, Cast of Lena, Edinburgh Fringe (uncredited) |