Barry Manilow and Cliff Richard
I don't think Sir Cliff really counts. Judging by how he looked last time I saw him on TV, he is an android. And they used cheap plastic for the face plate.

Barry Manilow and Cliff Richard

Have there been any recent or modern conspiracies involving long lived humans living secretly amongst us? Immortals? We have conspiracies about various aliens running things behind the scenes but what about those evil long living dudes or the old one about Ahasver?
Yeah, but won't happen until we are a spacefaring species and he will take the name Mua'dib. I think I read about it somewhere.Shia Islam has the concept of the "Hidden Imam". The twelth Imam, Muḥammad ibn al-Ḥasan, disappeared while still a young child, in 874 AD, and the Shia believe that he is still in the world but hidden by God from view, until a time that God decides when he will reappear as the "Madhi" or Messiah.
Yeah, but won't happen until we are a spacefaring species and he will take the name Mua'dib. I think I read about it somewhere.
I wish I was immortal!
In sci-fi and RPGs, yes.
I guess Illuminati (TM) membership has privileges.