Keeley Hawes

Herself - Host

Tracy Breeze

Herself (Margo Durrell's Granddaughter)

Eirini Chalikiopoulou

Herself (Spiros Halikiopoulos' Great-Granddaughter)

Jacquie Durrell

Herself (Gerald Durrell's First Wife)

Lee Durrell

Herself (Gerald Durrell's Widow)

Milo Parker

Himself

Anne, Princess Royal

Herself

Gerald Durrell

Himself (archive footage)

Lawrence Durrell

Himself (archive footage)