Jack Marlin (Mirage)

Jack Marlin is a fanatical big game hunter and though this obsession tried to kill the Turtles and Leatherhead for sport.

Personality
In his Mirage and 2003 incarnations Marlin is shown to be a very stubborn and tenacious hunter, who never allows himself to be diverted from his prey. He is after only "exotic", challenging prey and cares not a whit about how his victims must feel or whether they are capable of feelings at all (eg Leatherhead).

Marlin also does not seem to be very sociable; except for temporary allies (such as Razorback) or hired helpers he has little support (and usually not for very long), and instead names his hunting rifle affectionately "Betsy".

Cartoon Series (2003)
In the 2003 animated series Marlin appears in the episode "Hunted". In this version he uses a helper robot named "Amelia", and his "Betsy" is a high-powered laser gun in this case. Marlin is presumably killed in the climax of this episode by the explosion from his damaged rifle; his real current status remains unknown.

Marlin is voiced by Marc Thompson, who also voices the role of the King of Thieves in the series.

Trivia

 * His obsession with trying to find the next big hunt, makes him similar to the Spider-Man villain "Kraven the Hunter". However unlike Kraven he has no problem useing guns.
 * His robot Amelia is parody of R2-D2 from the Star Wars universe.