Superman - also known as Clark Kent or Kal-El. Superman is the archetypal costumed super-hero. He is clearly the most influential character in the comic book super-hero genre. The character was created by Jerry Siegel and Joe Shuster, both of whom were Jewish. The character of Superman, however, has always been depicted as having been raised with a solidly Protestant upbringing by his adoptive Midwestern parents - Jonathan and Martha Kent. Of Clark's parents, Martha is the more devout churchgoer. Clark Kent was raised as a Methodist. The Kents are Methodists, although Jonathan is not as regular a churchgoer as his wife.
Superboy - also known as Conner Kent or Kon-El Superboy is a clone made from the DNA of Superman (who was raised as a Methodist) and Lex Luthor (a Nietzschean atheist). Superboy was being raised by Jonathan and Martha Kent, who were also the adoptive parents of Clark Kent, the Kryptonian infant orphan who grew up to be Superman.
Supergirl - real name is Linda Danvers, the fictional character of Supergirl (the post-Crisis version written prominently by Peter David during the late 1980s and 1990s) was an active Methodist. Supergirl's minister, Rev. Larry Varvel, was based on a real-life Methodist minister of the same name.
Sylvia Danvers - Supergirl's (Linda Danvers) Mother, a church assistant studying for the ministry.
Atoman - also known as Craig Wallace, one of the Seven Sentinels
Amanda Waller—also known as The Wall, White Queen, and Black King—leader of the Suicide Squad and Checkmate.
Francine Peters-Silver - one of the characters in Strangers in Paradise.
Church Mice - a comic strip character created by Karl Zorowski.