Religion: Catholic nun
Alter Ego: Magda Sinclair
Other Names: Sister Magda Sinclair
First Appearance: Over the Edge #5 (Mar. 1996): "Magdelena Black and Red"
Number of Appearances: 2
Enemy of: Jack Shadows
Note: former mercenary blackmailed into targeting Punisher
Sister Magda Sinclair was a nun who worked at an orphanage, but had previously been a mercenary. Now she belonged to the Sisters of Mercy, a Catholic religious order. She was blackmailed by the villainous Jack Shadows into targeting the Punisher. However, she ended up helping the Punisher against Shadows' group. After this incident, she left the orphange.
Note: It appears that the Comic Book Database (ComicBookDB.com) website's page for Magda Sinclair incorrectly lists multiple appearances of a far better known comic book Magdalena, a character from independent comics publisher Top Cow. Marvel's Magda Sinclair has only made one major appearance (Over the Edge #5) and was subsequently mentioned in once as a possible Initiative recruit in Civil War: Battle Damage Report.
Suggested links for further research about this character and the character's religious affiliation: