|Manga||Chapter 38: Greenback Jane 1|
|Anime||Episode 16: Greenback Jane|
|Japanese Anime Voice||Masaki Terasoma|
|English Anime Voice||Brian Dobson|
"Groovy Guy" Russell (“グルーヴィ・ガイ”・ラッセル, "Gurūvi Gai" Rasseru) was a middle-aged American man who worked for the Florida crime syndicate that was tracking Jane.
He was quite distinguishable, since he dresses like a cowboy: he has the trademark hat, boots with spurs, a revolver at the hip, bandolier belt, tan shirt and jeans.
He is not taken seriously by the other bounty hunters because he is an outsider. Even Shenhua says, "Cowboy, this no Florida", meaning that he is in over his head.
However, his skills are shown to be more than enough, as he managed to be the last bounty hunter left in the hunt for Jane and he duels Eda on-board the Lagoon. It is then later revealed that he and Eda have met previously in the United States, but Eda says they have never met. Shortly before killing him, she confesses to him to be from the C.I.A..