Name: Mr. Fantastic
Alter Ego: Reed Richards
Other Names: Reed Benjamin; Richard Reed; Invincible Man; Man in the Mystery Mask; Big Brain; Doc Fantastic; Sir Richard Reed
First Appearance: The Fantastic Four (vol. 1) #1 (Nov. 1961): "The Fantastic Four!"
Super? (Has Super Powers/Special Abilities/Technology): Yes
Number of Appearances: 4,661
Comic Book Appearances: 4,570
TV, Film Appearances: 87
Video Game, Computer Game Appearances: 4
Romantic Interest: Invisible Woman
One good place to read about Reed Richards' theological beliefs is the story "The Father, the Son, and the Holy Spirit" in Marvel Double Shot #3 (March 2003). In this story, Reed Richards talks to his son Franklin about God (http://comics.org/details.lasso?id=277037).
In the MC2 future timeline, Reed Richards uses a robotic construction as his remotely controlled body. In this guise, he is known as "Big Brain," a member of the heroic Fantastic Five. "Big Brain" was created by Tom DeFalco and first appeared in What If (vol. 2) #105
Suggested links for further research about this character and the character's religious affiliation: