Question: Who created the fictional character that became the star of the War is Hell series in issue #9?

Context paragraphs:
War Is Hell (comics): War Is Hell was a horror/war comic book series from Marvel Comics in 1973–1975.  For its first six issues, it featured reprints of old war comics, followed by two issues of reprints of "Sgt. Fury and his Howling Commandos".  Beginning in issue #9, the series featured new material; the star of the series became Death, who forced a dishonorable Polish man named John Kowalski, killed in the Invasion of Poland (1939), to die countless deaths from other lives.  A "War Is Hell" limited series featuring Phantom Eagle appeared in 2008.

Wilbur Comics: Wilbur Comics was a comic book published from 1944 to 1965.  The comic featured the fictional character Wilbur Wilkin, a contemporary of Archie.  Wilbur Wilkin actually made his first appearance in "Zip Comics" #18, three months before Archie's first appearance.  Wilbur also made appearances in several other Archie comics, such as "Pep Comics", as a backup feature.  Of particular note, popular Archie character Katy Keene made her first appearance in "Wilbur Comics" #5.  This title was published originally under the imprint of MLJ Magazines, which then became Archie comics starting with issue #8.  After issue #87 (December 1959), the book went on until August 1963's #88.  After 1 more issue in 1964 and 1 in 1965, the series was canceled with issue #90.

Alastair (Supernatural): Alastair is a fictional character on The CW Television Network's drama and horror television series "Supernatural", appearing in its fourth season.  A particularly infamous torturer in Hell, he is portrayed in succession by actors Mark Rolston, Andrew Wheeler, and Christopher Heyerdahl due to his demonic ability to possess human hosts.  The writers created the character to explore series protagonist Dean Winchester's experiences while in Hell, particularly Alastair's tutelage of Dean in torturing other souls.  The character received generally favorable reviews from critics, with fans at the time considering him one of the series' best villains.

Death (Marvel Comics): Death is a fictional character appearing in American comic books published by Marvel Comics.  The character is based on the personification of death.  The character first appeared in "Captain Marvel" #26 (Jun. 1973) and was created by Mike Friedrich and Jim Starlin.

Painkiller Jane: Painkiller Jane is a fictional character, a comic book heroine created by Jimmy Palmiotti and Joe Quesada for Event Comics in 1995.  Originally a five-issue mini-series, the character went on to star in numerous crossover titles with the likes of the Punisher, Vampirella, and Hellboy.  Recently, the series relaunched at Dynamite Entertainment with the first issue selling out.  The comics have been the basis for a film and television series.

Faith (Buffy the Vampire Slayer): Faith is a fictional character created by Joss Whedon for the television series "Buffy the Vampire Slayer".  Played by actress Eliza Dushku, Faith was introduced in the third season of "Buffy" and was a focus of that season's overarching plot.  She returned for shorter story arcs on "Buffy" and its spin-off, "Angel".  The character's story is continued in the comic book series "Buffy the Vampire Slayer Season Eight", and she also appears in apocryphal material such as other comic books and novels.  Faith was set to receive her own spin-off television series after the final season of "Buffy", but Eliza Dushku declined the offer, and the series was never made.  The character later co-stars in the 25-issue comic book "Angel & Faith" beginning in August 2011 under the banner of "Buffy the Vampire Slayer Season Nine", the story taking place mostly in London and the surrounding area.  Seven years after the character's creation, Whedon granted her the surname Lehane for a role-playing game and subsequent material.  The last issue of "Season Eight" was the first source officially confirmed to be canon that referred to Faith by her full name.

Alexander Brandtner: Alexander Brandtner is a fictional character from the police drama television series "Inspector Rex", which airs on ORF and Sat.1 in the Austria.  The character was created by series' producer and Peter Moser, and is portrayed by Actor Gedeon Burkhard. First Gedeon Burkhard was a guest star in Season 1 Episode 9 "Amok", but then he became the main star.

Malebolgia: Malebolgia (also referred to at times as the Devil Malebolgia) is a fictional character, appearing as the original main antagonist in comic books featuring the superhero "Spawn".  Created by writer/artist Todd McFarlane, the character first appeared in "Spawn" #1 (May 1992).  The name "Malebolgia" is derived from the term in Dante's "Inferno" used to describe "Malebolge", the ditches ("bolge") in the eighth circle of Hell, where humans who committed the sin Fraud are punished.  He is Spawn's former master and archenemy who serves as one of the major Lords of Hell.

Vala Mal Doran: Vala Mal Doran is a fictional character in the American military science fiction television series "Stargate SG-1", a science fiction show about a military team exploring the galaxy via a network of alien transportation devices.  Played by former "Farscape" actress Claudia Black, Vala was created by Damian Kindler and Robert C. Cooper as a guest character for the season 8 episode "Prometheus Unbound" (2004).  Because of the on-screen chemistry between Black's Vala and Michael Shanks' character Daniel Jackson, and the character's popularity with the producers and the audience, Claudia Black became a recurring guest star in season 9 (2005–2006) and joined the main cast in season 10 (2006–2007).

Snapper Carr: Lucas "Snapper" Carr is a fictional character appearing in American comic books published by DC Comics.  The character, whose fictional nickname is almost always used by other characters in favor of his given name, was created by Gardner Fox (writer) and Mike Sekowsky (penciller), and made his first appearance in "The Brave and the Bold" in February 1960.  From 1960 to 1969, Snapper Carr appeared as a supporting character to the Justice League of America, a superhero team.  The character occasionally appeared in comics featuring the Justice League from 1969 to 1989, when the "Invasion! " limited-series comic book gave him superpowers.  He was associated with a new superhero team, The Blasters, in various comics until 1993, when he lost his powers and became a main character in the "Hourman" comic book.  After the cancellation of "Hourman" in April 2001, he became a main character in the "Young Justice" comic book beginning in December 2001.  "Young Justice" was cancelled in May 2003, and he became associated with the governmental organization Checkmate, a role revealed when the character played a small but important role in the 2007-2008 limited series comic book "52 Aftermath: The Four Horsemen".  The character made major appearances in "Final Crisis: Resist" in December 2008 and "Justice League of America 80-Page Giant" in November 2009.

Supporting paragraphs: War Is Hell (comics) Death (Marvel Comics)
Answer: Mike Friedrich and Jim Starlin