Religion: Protestant clergyman
Name: Reverend Garcia
Other Names: Rev. Garcia
First Appearance: Captain America (vol. 1) #139 (July 1971): "The Badge and the Betrayal!"
Number of Appearances: 4
Ally: Captain America
Obviously the character named "Reverend Garcia" (who has been described as a "strong supporting character") is a Christian clergyman. But "Reverend" is widely used by many denominations. Based purely on his name, we are assuming that Rev. Garcia is a Protestant clergyman. But he could be Catholic. Further study of the four issues in which this character appears should yield more precise classification.
Suggested links for further research about this character and the character's religious affiliation: