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Real Name
Leonard Samson
Current Alias




Leonard Skivorski (father);
Ricky Myers (son);


Base Of Operations
Culver University, VA




Green, (originally brown)


Marital Status

Psychiatrist, teacher, adventurer, former special consultant to Gamma Base

PhD in psychology

Gamma irradiation

Place of Birth


First appearance


Dr. Leonard Samson was a brilliant Psychiatrist came to General T.E. "Thunderbolt" Ross with a plan to cure Ross's daughter Betty, who had been transformed into a crystalline form through a blood transfusion with Sandman. Samson had technicians devise a cathexis ray projector that would drain off gamma particle energy and psionic energy from Bruce Banner as he transformed into the monstrous Hulk whom General Ross had long hunted. Samson theorized that as a result of this process, Banner would be cured of the physiological instability that continually transformed him into the Hulk. Hoping to save Betty and to be cured himself, Banner willingly participated in the experiment. The cathexis ray succeeded in turning Betty Ross back to normal, employing Banner's psionic energy.

However, most of the psionic energy drained from Banner (as well as a considerable amount of his excess gamma radiation) remained within the cathexis ray projector. Motivated by scientific curiosity, and probably by a desire to gain superhuman powers for himself, Samson irradiated himself with the energies remaining within the projector. The result was that the slim, brown-haired psychiatrist was transformed into a massively-muscled, green-haired superhuman with gamma-boosted strength. Banner himself seemed permanently cured, but he broke emotionally under the strain of seeing Betty, the woman he loved, being romanced by Samson and exposed himself to gamma radiation, thereby undoing the cure.

Powers and Abilities


  • Gamma Radiation Enhancements: Doc Samson possesses great superhuman strength, endurance, and resistance to injury. The gamma radiation that transformed Doc Samson fortified his cellular structure, added roughly 200 pounds of enhanced muscle, bone, and connecting tissue to his body, and turned his hair green. (The source of Samson's added mass is unknown, but probably extra-dimensional.)
  • Superhuman Strength: While not exposed to as great a dosage of gamma radiation as the Hulk, the Abomination, or even the She-Hulk, Samson was granted great superhuman strength. As a result of his gamma ray exposure, he possessed sufficient superhuman strength to lift about 70 tons. Samson's strength doesn't fluctuate with surges of adrenaline during periods of heightened emotional states, such as the Hulk does while angry, and as a result, he is far less powerful. His strength was dependent upon the length of his hair. The longer it is, the stronger he was. His great strength also extends into the powerful muscles of his legs, allowing him to leap great heights and distances, though far less so than the Hulk or Abomination. Samson has been known to leap approximately 580 feet straight up into the air, and to a maximum reported distance of 910 feet. His strength no longer depends on the length of his hair, but it may still be affected by it.
  • Superhuman Stamina: As in the case of the Hulk, She-Hulk and Abomination, the gamma ray exposure has dramatically increased the efficiency of Samson's musculature, though not as greatly. As a result, his musculature produces considerably less fatigue toxins during physical activity than the musculature of a normal human. Samson can physically exert himself at peak capacity for about 24 hours before the build up of fatigue toxins in his blood begins to impair him.
  • Superhuman Durability: Samson's gamma ray enhanced physique is much harder and more resistant to physical injury than a normal human. Samson's skin is able to resist penetration wounds from high caliber bullets or blades composed of most conventional materials. Samson is also physically durable enough to withstand multiple blows from the Hulk, while in an enraged emotional state, and sustain little to no injury. His bones and muscles are strong and resilient enough to be able to survive a fall at terminal velocity reached after free-falling 4000 feet in a feet-first attitude at 145 miles per hour against sidewalk concrete, provided he lands upright. Even if he doesn't land upright, Samson wouldn't sustain serious physical injury.
  • Retained Consciousness: Samson still contains his memories and cognitive abilities. Samson's superhuman physique isn't the physical manifestation of an alternate personality brought about by exposure to high levels of gamma radiation, whereas the Hulk is an alternate personality of Bruce Banner. This is also a factor as to why Samson doesn't revert to a non-superhuman form.
  • Superhuman Strength: Samson's strength is said to surpass that of the She-Hulk, and he is therefore capable of lifting far in excess of 100 tons.
  • Superhuman Stamina: It is unknown if Samson's stamina is greater than the Doc Samson's form, like his strength.
  • Superhuman Durability* Samson's durability has not been stated to have changed, but it is likely it has, as he was capable of receiving blows from She-Hulk without sustaining injury.


Doc Samson is a skilled psychiatrist, said to be one of the most renowned on Earth. He is also an M.D. as well as a PhD . He has used a nutrient bath to separate Banner and the Hulk and placed a rem-integrator in the Hulk's head to put him to sleep. While he's had no formal training, his powers make him a formidable hand-to-hand combatant. He typically uses street fighting techniques that allow him to make full use of his strength.

Strength level

  • Doc Samson 70 tons.


None known.


Equipment: None known.
Transportation: None known.
Weapons: None known.


As is apparent by comparing the mutated forms of such gamma radiation subjects as the Hulk, the Abomination, She-Hulk, Doc Samson, and the Leader, different frequencies of gamma radiation affect different human beings in different ways. The effect that intensive gamma radiation has on most people is cellular deterioration and eventual death, but there are others whose genetic constitution enables them to mutate so as to gain superhuman powers.

The type and extent of mutation is determined by four factors: the frequency and amount of the gamma rays, the subject's latent mutant potential, and the subject's psychological make-up. The subject's potential for mutation is dictated by certain mysterious "interstitial" segments of DNA (deoxyribonucleic acid), the molecules which carry a living organism's genetic code. Under the action of mutagenic influences, such as gamma rays, the segments can trigger many body wide restructuring events. As for the subject's psychological make-up, it has been theorized that the gamma radiation somehow acts to mold the subject's mutated form according to repressed desires within his subconscious. Hence, Doc Samson's mutated form is the physical embodiment of his own long-buried desire to become a super heroic figure.

These four factors contributed to the extremely non-human appearance of the Abomination, the Neanderthal-like appearance of the Hulk, and the relatively normal appearance of Doc Samson, whose only aberration is his hair color. Why gamma radiation tends to produce mutate forms of a greenish hue is not yet known.


  • No trivia.

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Links and References

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