Dennis Gamble
Biographical information
Gender Male
Species Human
Age 35
Status Alive
Cause of Death N/A
Killed by N/A
Family Unknown
Abilities Resist infection from the alien DNA, blood which can destroy alien
Played by Mykelti Williamson
Appearances Species II

Dennis Gamble is a character from Species II. He is a African-American astronaut. He is the only one person who did not become infected with alien DNA due to having a genetic flaw which makes him immune to it. 

Species IIEdit

Dennis Gamble participated in a American space mission that landed on Mars with Anne Sampas and Patrick Ross, the commander of the mission who collected soil samples. However, the temperature onboard the ship thaws a mysterious substance within a sample, which then attempts to infect the astronauts.

After their return, Dennis, Patrick and Anne are examined by the space agency doctor, Orinsky and quarantined to prevent them from engaging in sexual activity for ten days. They later attend a fundraiser that's honoring them as astronauts.

After Dr. Orinsky is killed by Patrick, Laura Baker finds out the astronaut may be infected with the alien disease. Government agents are able to locate him and analyze his blood, revealing that he was not infected and is allowed to go home, though he is asked if he knows where to find Patrick Ross. He answers that he doesn't know where Patrick Ross is, but is asked to inform them of where he is or where he might be found should he ever see him. Dennis decides to go find Patrick to find out what is going on.

As Dennis, who arrives moments before Patrick's suicide attempt, witnesses this, he sees his friend regrow. He then becomes scared and runs off to tell Press Lennox and Laura; he then joins them in their mission.

Meanwhile, Laura finds out that Dennis had resisted infection from the alien DNA due to the fact that he is carrying a genetic flaw, and makes plans to infect the alien species with Dennis' DNA, as the species lacks immunity to human genetic diseases. As the team prepares, Eve breaks free from the lab to find Patrick. The team tails her, finds the shed and kills Patrick's brood.

Eve and Patrick begin mating, but are interrupted by Press, who tries to get Eve to get away from Patrick. Patrick fights off Press and Dennis and later overpowers Eve (who had attacked him at Laura's request after she begged her, appealing to her human half). He then, seemingly, kills her by forcing his penis-like tentacle down her throat, choking her to death. Press stabs Patrick in the back with a pitchfork coated with Dennis' blood, causing Patrick to die and disintegrate.

Afterwards, the military finally arrives and escorts Press, Laura and the injured Dennis away.

Species II NovelizationEdit


  • "Man, a brother can't get no booty!"
  • "I haven't been laid in eleven months."