Keeley Hawes Louisa Durrell Actor, Executive Producer Josh O'Connor Larry Durrell Actor Milo Parker Gerry Durrell Actor Callum Woodhouse Leslie Durrell Actor Daisy Waterstone Margo Durrell Actor Alexis Georgoulis Spiros Hakaiopolous Actor Yorgos Karamihos Dr. Theo Stephanides Actor Lucy Black Florence Actor Anna Savva Lugaretzia Actor Konstantinos Symsiris Lazaros Vangelatos Actor Kostas Krommydas Superintendent Actor Talitha Stone Dorothy Actor Elli Tringou Daphne Actor George Vafakis Sergeant Lambros Zervos Actor Sophie May Wake Veronica Actor Simon Nye Writer, Executive Producer Lee Morris Executive Producer Christopher Hall Producer Sally Woodward Gentle Executive Producer Roger Goldby Director