d-head_doctor
The Doctor (Arknights) from Arknights depicted with a D in place of their head, similar to the P-head Producer in Idolmaster and the T-head Admiral in Kantai Collection fanart. The D comes from the first letter of "Doctor".
Rarely portrayed because the default hooded appearance is more iconic and already serves the purpose of obscuring/anonymizing the Doctor's facial features.
See also
* Doctor (Arknights)* C-head Commander
* P-head Producer
* S-head Commander
* S-head Sensei
* Sa-head Saniwa (Touken Ranbu)
* T-head Admiral
* T-head Trainer (umamusume)
* U-head Trainer (umamusume)