You're right, I limited it to named characters, though of the ones you mentioned, I left out Victorian Clara and Oswin, since they are just extensions of Clara, Danny since he still lives in the Nethersphere and Cleric Bob since he got absorbed by the Weeping Angels or something.
The six permanent deaths by my count are Father Octavian, Lorna Bucket, Abigail, Joy the White House secretary, Colonel Ahmed (the "Man Scout" from Death in Heaven) and Professor Albert (Michael Troughton in Last Christmas).
Actually, upon review, I'm not sure about Abigail being on the list since her death wasn't actually shown.
The six permanent deaths by my count are Father Octavian, Lorna Bucket, Abigail, Joy the White House secretary, Colonel Ahmed (the "Man Scout" from Death in Heaven) and Professor Albert (Michael Troughton in Last Christmas).
Actually, upon review, I'm not sure about Abigail being on the list since her death wasn't actually shown.