Sandeman

Background
Sandeman is a figure who is often referred to but appears only briefly in the series in a form of a faceless flashback Max has later in Season 2. He was part of the same ancient cult as Ames White but rejected it and created Manticore. Joshua and Isaac, Joshua's younger brother, were his first creations. In addition, Sandeman created X5-452, also known as Max Guevara, in whom he implanted a message in an ancient language related to the cult, which manifests itself as tattoo-like markings on her skin. Max was created as a means to stop the ancient cult. This is hinted at in early season 2 episodes, as she is said to have no "junk DNA".

It is revealed by C.J. Sandeman that Ames White and himself are Sandeman's sons.