Of course, it would make no sense for Khan to look like Montalban during these events, in-universe.
Khan is now John Harrison, a secret agent. It wouldn't do to give him a face that any recognition program nails as that of Khan Singh! I mean, Starfleet has everybody's face on record, from Khan to Kodos the Executioner to Jackson Roykirk. And this carries no weight as evidence in court, as we see with Kodos - which goes well with the idea that Khan could change faces at the drop of a turban.
That Voq undergoes this bizarre ordeal in order to become Tyler, instead of just undergoing classic cosmetic surgery, in itself supports the idea that cosmetic surgery is commonplace in the 23rd century and doesn't really help in hiding one's identity in the long term. Case in point, Arne Darvin...
Whether Khan ever was Sikh, we don't know. Marla McGivers is the one to recognize him as one - and she has probably recognized him as Khan Singh instead and is doing her best to hide this fact from her captain. But Khan did choose to rule under the name Singh. Then again, he chose to rule under the title Khan, which might not go down well with today's Sikhs.
Timo Saloniemi
Khan is now John Harrison, a secret agent. It wouldn't do to give him a face that any recognition program nails as that of Khan Singh! I mean, Starfleet has everybody's face on record, from Khan to Kodos the Executioner to Jackson Roykirk. And this carries no weight as evidence in court, as we see with Kodos - which goes well with the idea that Khan could change faces at the drop of a turban.
That Voq undergoes this bizarre ordeal in order to become Tyler, instead of just undergoing classic cosmetic surgery, in itself supports the idea that cosmetic surgery is commonplace in the 23rd century and doesn't really help in hiding one's identity in the long term. Case in point, Arne Darvin...
Whether Khan ever was Sikh, we don't know. Marla McGivers is the one to recognize him as one - and she has probably recognized him as Khan Singh instead and is doing her best to hide this fact from her captain. But Khan did choose to rule under the name Singh. Then again, he chose to rule under the title Khan, which might not go down well with today's Sikhs.
Timo Saloniemi