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)

Margo Durrell

Herself (archive footage)

Toby Roebuck

Ewen Thomson