The Incredible Hulk (vol. 2) #338 (Dec. 1987):
“Mercy Killing”
by Peter David, Todd McFarlane, James Sanders III

The Incredible Hulk (vol. 2) #338

Title: “Mercy Killing”

Medium: comic

Cover date: Dec. 1987

Publisher: Marvel
Written by: Peter David
Art by: Todd McFarlane, James Sanders III

13 characters in this story:

(Click links for info about character
and his/her religious practice, affiliation, etc.)
Pub. #
The Hulk The Hulk (Bruce Banner)
(lead character)
hero scientist
CBR Scale: I Catholic (lapsed)
Hulkbusters; Pantheon...  Marvel 4,551
Mercy Mercy (Abigail Wright) villain
CBR Scale: S angel (self-styled); alien missionary (claimed)
The Thunderbolts
["helps" suffering people commit "suicide" by killing them]
Marvel 16
A-Bomb Rick Jones supporting character
  Loners (founder); The Avengers (honorary member)...  Marvel 572
S.H.I.E.L.D. S.H.I.E.L.D. supporting character group
  [government agency; intelligence agency...] Marvel 1,188
Clay Quartermain Clay Quartermain supporting character
  Hulkbusters (S.H.I.E.L.D.); Hulkbusters (U.S. Military)...  Marvel 116
Craig Saunders, Jr. hero
  Hulkbusters; Riot Squad Marvel 18
Samuel J. LaRoquette hero
  Hulkbusters; Riot Squad... 
[was partner of Redeemer]
Marvel 30
Agent Trump supporting character
[part of pursuit of grey Hulk]
Marvel 4
Alfred Pennyworth Alfred Pennyworth
supporting character
CBR Scale: I Anglican
[butler] DC 3,048
The Leader The Leader (Samuel Sterns)
CBR Scale: U manifestly non-religious
Headshop (founder); Home Base (leader)...  Marvel 167
Senator Tidewater Senator Tidewater
supporting character
  [The Leader suggested he could be next President] Marvel 1
Red She-Hulk Betty Ross
supporting character
CBR Scale: S Catholic (former novitiate)
Code Red; Home Base... 
[girlfriend (later wife) of Dr. Bruce Banner (the Hulk)]
Marvel 463
supporting character
  [former lover of Betty Ross] Marvel 7