Several characters have been seen using the device:
- Romana, one of the Fourth Doctor's companions actually crafted her own screwdriver (similar to his own) and used it to find the scattered pieces of the Key to Time.
- In "The Doctor Dances", Rose Tyler used the Ninth Doctor's screwdriver to repair barbed wire.
- In "School Reunion", Rose Tyler (already counted) and Sarah Jane Smith were seen using the Tenth Doctor's screwdriver to search computer files.
- In "Forest of the Dead", River Song was shown with the Doctor's screwdriver (this was later re-shown in "The Husbands of River Song").
- In "The Big Bang", Rory Williams used the Eleventh Doctor's sonic screwdriver to open the Pandorica.
- In "The Girl Who Waited", "older Amy" (with some assistance) made and used what she initially insisted was a "sonic probe" but later admitted was a screwdriver.
- In "The Caretaker", Clara Oswald used the Twelfth Doctor's sonic screwdriver to attract the Blitzer & lure it to a storeroom.
- In "The Crystal Throne" (Doctor Who Magazine comic story), Vastra used a sonic screwdriver -- a gift from the Doctor -- to shatter glass.
- Finally, after the Twelfth Doctor left his screwdriver behind in a minefield in "The Magician's Apprentice"/"The Witch's Familiar", Davros (as a young boy) found it and kept it until it became withered and useless.
If only devices described as sonic screwdrivers are counted, this makes nine users in total, not including the Doctor himself.
In "Partners in Crime", however, Matron Cofelia ("Miss Foster") had a sonic pen which functioned in the same way as a sonic screwdriver. She would raise the total to ten other users.
In The Sarah Jane Adventures, Sarah Jane Smith used a sonic lipstick that also functioned in the same way as a sonic screwdriver and, in "The Husbands of River Song", River was shown to have a sonic trowel. These two have already been counted as using the screwdriver, so they don't increase the total.