DC Comics characters who have mental powers DC Comics telepaths DC Comics telekinetics Fictional characters who can turn intangible Fictional characters who can turn invisible Fictional characters with X-ray vision Fictional characters who can stretch themselves Fictional characters with density control abilities Fictional characters with energy-manipulation abilities Fictional characters with fire or heat abilities Fictional characters with slowed ageing Fictional Martians Twin characters in comics Characters created by John Ostrander Comics characters introduced in 1998