First Doctor audio stories

The First Doctor has featured in several audio stories.

Audio companions of the First Doctor

 * Susan Foreman (The Companion Chronicles, The Early Adventures, The First Doctor Adventures, The Lost Stories, Short Trips, Special Releases, The Diary of River Song)
 * Ian Chesterton (The Companion Chronicles, The Early Adventures, The First Doctor Adventures, The Lost Stories, Short Trips, Special Releases)
 * Barbara Wright (The Companion Chronicles, The Early Adventures, The First Doctor Adventures, The Lost Stories, Short Trips, Special Releases)
 * Vicki Pallister (The Companion Chronicles, The Early Adventures, The Lost Stories, Short Trips, Special Releases)
 * Steven Taylor (The Companion Chronicles, The Early Adventures, The Lost Stories, Short Trips, Special Releases, BBC Audio Dramas)
 * Katarina (The Early Adventures)
 * Sara Kingdom (The Companion Chronicles, The Early Adventures, The Lost Stories, Special Releases, BBC Audio Dramas)
 * Oliver Harper (The Companion Chronicles)
 * Dodo Chaplet (The Companion Chronicles, Short Trips, The Early Adventures, The First Doctor Adventures)
 * Polly Wright (The Companion Chronicles, Short Trips)
 * Ben Jackson (The Companion Chronicles, Short Trips)

New Series Adventures
After the Twelfth Doctor was hit by energy from the time storm, he entered a degeneration cycle, going back from his eleventh incarnation to his first.