#m1d

His full name is actually M1D-14, since he is the 14th prototype Sable has created and he has the most success rate. The 13 other models Sable had to scrap due to malfunctions or failed experiments. She would use what she learned from the scrapped model and use that to create a new and improved one.

One android in particular, called M1D, is the only one with complex artificial intelligence. He's the one Sable trusts most to assist her during operations since she's programmed him to catch any flaws or mistakes she otherwise would've missed. She built him to specifically hone her skills in surgery.

She also has him do all of her paperwork and tedious work that she doesn't feel like doing or just doesn't have time for.

M1D is the only android who has some control over the cameras and mics in the sanitarium so he can see what goes on at all times. If there is something amiss - a patient breaks a rule, someone gets hurt, or a nurse malfunctions - M1D can report it to the twins immediately.