ok so I had a thought as I was watching Naruto.

so in Naruto they had Mizuki sensei who attacked Naruto for the scroll and was a traitor for Orochimaru and he looked like this

but then Orochimaru suddenly had a biological lab child called Mitsuki who looks similar but with his hair and their names are close sounding as well as Mitsuki face is slightly wider than Orochimaru's which gives Mitsuki and Mizuki a similar look. the hair could be because due to Mitsuki being made in a lab could cause his skin and hair to lose the colour . but Mitsuki has Mitsuki's hair colour as well as the slightly bigger face shape and the slightly bigger eye shape but Mitsuki also has Orochimaru's sharp chin as well as his eye colour and nose as well which gives me the idea that when Mizuki died (or at least I think he died, I might be wrong) Orochimaru used some of Mizuki's DNA and combined them since Mizuki was strong and I think he had bloodlines and a clan( im not sure google doesn't give me much info) so Orochimaru saw him as a easy and quick candidate since he was dead so he couldn't stop Orochimaru and his body was still relatively fresh and could still get DNA from it so then he made Mitsuki who looks a little like the both of them but only if you put the two pictures together but this is just a thought, not a fact so I may be wrong.