Groo The Wanderer #21 - Marvel Comics - 1986
Groo The Wanderer #23 - Marvel Comics - 1987
Sergio Aragones The Groo Chronicles #1 - Marvel Comics - 1989
Groo #7 - PC Comics - 1984 - 1st Appearance of Chakaal
Groo #35 - Marvel Comics - 1988
Groo #16 - Marvel Comics - 1986
Groo The Wanderer #20 - Marvel Comics - 1986