Big Finish Doctor Who audio spin-offs

In addition to the Doctor Who audio dramas featuring the Doctor, Big Finish Productions also produced audio dramas centred around other characters in the Doctor Who universe. Here is a list of the Big Finish spin-offs.

The Worlds of Doctor Who

Class: The Audio Adventures - Adventures centred around the Doctor Who spin-off Class.
Counter-Measures - The Intrusion Countermeasures Group from Remembrance of the Daleks fight alien and supernatural threats in the 1960s. It was succeeded in 2016 by The New Counter-Measures.
Cyberman - Follows the Orion War in the 26th century, which involved the humans, androids and Cybermen.
Dalek Empire - Humanity fighting the Daleks across thousands of years.
The Diary of River Song - The adventures of River Song.
Gallifrey - A political thriller set on Gallifrey, featuring Romana II, Leela and brand new characters such as Narvin.
I, Davros - Davros's rise to power, from childhood to the creation of the Daleks.
Jago & Litefoot - Henry Gordon Jago and Professor George Litefoot from The Talons of Weng-Chiang investigate infernal incidents in Victorian London.
The Lives of Captain Jack - Adventures of Jack Harkness.
Missy - Missy's exploits away from the Doctor.
The New Adventures of Bernice Summerfield - Starting with volume 5, this series began being labelled as a spin-off from The Worlds of Doctor Who. It follows the adventures of Bernice Summerfield with a Doctor from a parallel universe.
The Paternoster Gang - Investigations of the Paternoster Gang.
The Robots - What happened with Liv Chenka during the year-long gap in Escape from Kaldor.

Sarah Jane Smith - Sarah Jane's adventures following the Fourth Doctor returning her to Earth and A Girl's Best Friend.
UNIT - An original UNIT team deal with threats both alien and human in the early 2000s. Was followed by a Doctor Who special.
UNIT: The New Series - Successor of the original UNIT series. Featuring Kate Stewart, Osgood and a new UNIT team combating alien invasions in the 2010s.
The War Master - Adventures of the the War Master as played by Derek Jacobi, set during the Time War.

Main article: The Worlds of Doctor Who - Special Releases

Bernice Summerfield - The adventures of archaeologist Bernice Summerfield, former companion of the Seventh Doctor.
Charlotte Pollard - The adventures of Charlotte Pollard, former companion of the Eighth and Sixth Doctors and associate of the Viyrans.
Graceless - Twin tracers Abby and Zara, who previously encountered the Fifth Doctor.
Iris Wildthyme - Transtemporal adventuress Iris Wildthyme traverses the universe in the Celestial Omnibus.

The Worlds of Big Finish - Special anthology released to celebrate the 15th anniversary of The Sirens of Time's release. It features stories starring characters from the Doctor Who universe, such as Bernice Summerfield, Abby, Zara, Iris Wildthyme, among others.