The Orphan Quartet (audio anthology)

 was a full cast audio anthology released on 22 August 2023 by Big Finish Productions. It was the twelfth and final series of The Diary of River Song. It featured Alex Kingston as River Song and Camille Coduri as Jackie Tyler.

Publisher's summary
An old enemy hides beyond the universe, a desolate Cornish inn confronts the truth, a grieving mother holds onto a deadly memento of war, and has the Earth failed to notice it’s been invaded? Professor River Song must solve all this while dealing with a loss of her own.

12.1 The Excise Men by Lou Morgan

A smugglers’ inn on the Cornish coast in the 18th Century is under attack. Never do a deal with the Excise Men.

12.2 Harvest of the Krotons by James Goss

What are the Krotons? Why are they running a health spa? Jackie Tyler and River Song investigate, because everyone needs a direction point.

12.3 Dead Man Talking by Tim Foley

Among the wreckage of the planet Earth, an old lady treasures a terrible relic that reminds her of her son. River Song has come to take it away.

12.4 The Wife of River Song by Lizzie Hopley

River Song is on an expedition seeking the Hive. Her sister is trapped in the ruins of the Hive. River Song is on honeymoon. Three realities meet.

Featured actors

 * Alex Kingston
 * Camille Coduri
 * Nina Toussaint-White