This one’s by Bloody Shadow.
Cameo: Alucard (Castlevania).
This one’s also by Vkitty; more on her DeviantArt account.
The use of Walter for everday household tasks is illustrated here by Vkitty.
Jeremy C. made not only this strip, but an accompanying video (now deleted).
The proper way to deal with Mary Sues is brought to you by Morgan.
This one was drawn by Livi.
This one’s from Bishonen-no-hime; there’s more on her DeviantArt account.
Go read the rest of the Chibi Hellsing Moments.
These three are part of the brilliant Chibi Hellsing Moments collection.
Along with the next two, this was written by Aaron Neilsen and drawn by J.R. Ruins.