Real Name: Sinkovitz (first name unrevealed)

Identity/Class: Human mutate, technology user (1950s era)

Occupation: Scientist; would-be superhero

Group Membership: None

Affiliations: Duped by Zirksu (as Vice-President Richard Nixon)

Enemies: 3-D Man (Chuck Chandler/Hal Chandler)

Known Relatives: Unidentified parents (mentioned only)

Aliases: Jack Frost, Mr. Cool, Sub-Zero Man (as called by 3-D Man)

Base of Operations: His laboratory in Los Angeles, California

First Appearance: Marvel Premiere I#37 (August, 1977)

Powers/Abilities: Highly knowledgeable in the field of cryogenics, Sinkovitz built the absolute zero apparatus, which temporarily granted him superhuman powers related to intense cold, and he also somehow gained enhanced strength. He wore a special suit that initially protected him from the sudden drop in body-heat when he was empowered by the absolute zero apparatus; additionally, the suit helped his body maintain its new sub-zero temperature. Sinkovitz's powers seemed to be dependent on his costume, although he could not maintain his superhuman abilities indefinitely in any case.

As the Cold Warrior, he could freeze the ambient moisture in the air for a variety of effects. By forming sheets of ice on the ground, he could cause opponents to slide and lose their footing; additionally, he could project smaller chunks of ice from his hands, or form a huge weighty ice-ball that did not float in water.

Height: Unrevealed (5'10"; by approximation)
Weight: Unrevealed (170 lbs.; by approximation)
Eyes: Blue
Hair: Brown

(Marvel Premiere I#37 (fb) - BTS) - Professor Sinkovitz and his parents had been driven from their European homeland when communist forces took over -- as a result, they became penniless refugees, and because of this, Sinkovitz grew to become a patriotic American with a rabidly anti-communist ideology.

   Eventually becoming a scientist in the field of cryogenics, Sinkovitz maintained a laboratory hidden in a slum area near downtown Los Angeles. To prove his theory -- that the human body could be altered and given fantastic abilities through carefully controlled temperature changes -- he built his absolute zero apparatus, but encountered a few unsolvable problems in developing the device.

(Marvel Premiere I#37) - In 1958, Sinkovitz received some unexpected assistance in fixing the problems when "Vice-President Richard Nixon" (actually Zirksu, a shape-shifting Skrull spy) came to his lab and gave him technical assistance.

   With the problems solved, "Nixon" told Sinkovitz that the government wanted his machine to be a success so he could become a human weapon against the 3-D Man; "Nixon" convinced him that the 3-D Man was actually a Communist agent, so the patriotic Sinkovitz readily agreed to help stop the "Commie spy."

   Donning a special protective suit, Sinkovitz stepped inside the absolute zero apparatus, while "Nixon" operated the controls. The interior of the cylinder soon reached absolute zero, and when Sinkovitz emerged from the apparatus, he was successfully empowered with the ability to project intense cold -- his reduced body temperature was even causing it to snow inside the enclosed lab building!

   "Nixon" dubbed the transformed Sinkovitz as the "Cold Warrior" and sent him to Santa Monica Pier; afterwards, "Nixon" remotely adjusted the Augmatron that the 3-D Man had earlier confiscated from Vince Rivers, so it emitted a signal that led the hero to the Cold Warrior.

   As the two battled to a stalemate on the Pier, the 3-D Man realized that his frigid foe's ice was heavier than water, so he knocked the Cold Warrior into the Pacific Ocean, where Sinkovitz's powers continued to produce the unique weighty ice around his body, and he sank to the bottom. Only the warm waters and his impact against an abandoned automobile on the sea floor freed Sinkovitz from his icy shell.

   With his suit damaged and his powers faded away, the defeated Sinkovitz managed to swim up to the surface -- he could only futilely shake his fist and curse, as the 3-D Man swam away at triple-human speed.

Comments: Created by Roy Thomas and Jim Craig.

Maybe earlier in the 1950s, Professor Sinkovitz worked at the Deep Freeze facility, where Captain America (William Burnside) and Bucky (Jack Monroe) were kept in a state of cryogenic suspension (@ Captain America I#155 / Marvel: The Lost Generation#1) -- if so, perhaps he was acquainted with Pat Carney, who later became the Yankee Clipper.

The Cold Warrior was basically a "good guy," so maybe Sinkovitz could be brought back for an Agents of Atlas story -- since he specialized in cryogenics, he could have placed himself in suspended-animation and retained his relative youth, to be revived in modern times.--Ron Fredricks

As seen in What If? I#9, the Cold Warrior had a counterpart on Earth-9904, until that reality was erased by Immortus; details of that Cold Warrior's participation in the story follow below:

(What If? I#9) - In 1958, the Yellow Claw used alchemy potions to restore the Cold Warrior's powers and enslave his will. The Cold Warrior was thus forced to become a member of a group of superhuman criminals assembled by the Yellow Claw as part of his scheme to capture President Eisenhower. Alongside Electro, the Great Video, and Skull-Face, the Cold Warrior kidnapped Eisenhower -- during the abduction, the Cold Warrior reluctantly froze one of the the President's guards to death, because he was unable to resist the Yellow Claw's commands. The kidnappers then took Eisenhower to the Yellow Claw.

   Later, FBI agent Jimmy Woo sneaked into the Yellow Claw's base, and was taken captive by the Claw; but Suwan summoned the Avengers, whom Woo had brought together. The Cold Warrior froze the Human Robot and Venus -- he regretted doing so, but couldn't resist the Claw's influence. Then Gorilla-Man grabbed the Cold Warrior and hurled him into Skull-Face, which shattered the living skeleton to pieces, while the Cold Warrior was knocked unconscious.

(For a good while, it was presumed that the 1950s Avengers from Earth-9904 existed on Earth-616. But they were seemingly ret-conned out of existence when Kurt Busiek destroyed their reality in Avengers Forever. However, in a personal communication with Busiek (on Avengers Message Board), he specifically stated that he did not wipe the Avengers of the 1950s from existence -- only one alternate timeline containing them was wiped out. The group may well have existed in the mainstream past, but they just weren't called the Avengers. He suggested the name: "The G-Men".

Later, when Agents of Atlas was published, it was explained that the heroes did team up together on Earth-616, only they were called the G-Men and 3-D Man never joined, which explained that the What If issue's reality (Earth-9904) was the one that Immortus actually destroyed.)

Profile by Omar Karindu. Expansion by Ron Fredricks.

The Cold Warrior (Professor Sinkovitz) has no known connections to:

Professor Sinkovitz's absolute zero apparatus

The creation of Sinkovitz, it consisted of a transparent cylindrical chamber connected to various supporting equipment.

Theorizing that the human body could be altered and given fantastic abilities through carefully controlled temperature changes, Sinkovitz built this device in his laboratory hidden in the city slums.

But Sinkovitz was having a few problems with the development of the device, until he solved them with the assistance of "Vice-President Nixon" (actually the Skrull spy Zirksu) in 1958.

With "Nixon" operating the controls, Sinkovitz donned a special protective suit and stepped inside the activated chamber, where the temperature rapidly began to drop.

When the temperature within the cylinder reached absolute zero, Sinkovitz was empowered with the ability to project intense cold; as his sub-freezing hand made contact with the interior of the cylinder, it caused the brittle "unbreakable" glass to shatter.

Stepping forward out of the shattered cylinder, the altered Sinkovitz felt larger and more powerful; "Nixon" then dubbed him as the "Cold Warrior" and sent him on a mission to battle the 3-D Man.

--Marvel Premiere I#37

images: (without ads)
Marvel Premiere I#37, p11, pan1 (Main Image - Cold Warrior emerges from shattered absolute zero apparatus)
Marvel Premiere I#37, p9, pan4 (Headshot - Professor Sinkovitz)
Marvel Premiere I#37, p13, pan7 (Cold Warrior fires ice projectiles from his hand)
Marvel Premiere I#37, p15, pan2 (Cold Warrior forms huge ball of ice; 3-D Man (foreground))
Marvel Premiere I#37, p17, pan4 (defeated, Sinkovitz curses at 3-D Man while in waters near Santa Monica Pier; men fishing in boat (background))
What If? I#9, p24, pan3 (Earth-9904 - Cold Warrior freezes Human Robot; Yellow Claw (background))
Marvel Premiere I#37, p9, pan3 (absolute zero apparatus; Professor Sinkovitz, Zirksu (disguised as Vice-President Nixon) (foreground))
Marvel Premiere I#37, p10, pan4 (Sinkovitz wearing protective suit, being empowered inside absolute zero apparatus)

Marvel Premiere I#37 (August, 1977) - Roy Thomas(writer), Don Glut (plot assist), Jim Craig (pencils), Dave Hunt (inks), Don Warfield (colors), Joe Rosen (letters), Archie Goodwin (editor)

First posted: 12/30/2001
Last updated: 09/14/2022

Any Additions/Corrections? please let me know.

Non-Marvel Copyright info
All other characters mentioned or pictured are ™ and © 1941-2099 Marvel Characters, Inc. All Rights Reserved. If you like this stuff, you should check out the real thing!
Please visit The Marvel Official Site at:

Special Thanks to for hosting the Appendix, Master List, etc.!

Back to Characters