Described by The Chief as a "genius bio-chemist who suffered a mental collapse". Mr. 103 first appeared in Midway City robbing banks, using his ability to transform his body, or parts thereof, into any element of his choosing.

Mr. 103 as he first appeared.

Mr. 103 as he first appeared.

The Chief theorized that Dubrovny had been experimenting with teleportation, requiring the separation of a man's body into its component elements. He developed a machine which could emit a ray beam capable of bestowing the ability to change into the elements.

The Chief shockingly declared the Doom Patrol to be a failed experiment and disbanded the team, but Negative Man reorganized the trio in a new headquarters. Failing to stop the shape-changing maniac, the Doom Patrol returned to the Chief for help, only to find him dying of radioactive blood poisoning. Knowing he was doomed, he had deliberately severed relations with the team, hoping they would try to succeed without him.

Now he enabled them to defeat Mr. 103, using a ray based on an extraterrestrial element. Negative Man then forces the captured villain to use his transformation process to cure the Chief's illness.[1]

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Dubrovny was later recruited by the Suicide Squad on a mission to rescue Hawk in Nicaragua. This mission went poorly and Dubrovny was seemingly killed fighting the Rocket Red Brigade.[2]

Several years later, Dubrovny resurfaced as Mister 104 and fought Superman and Power Girl.[3]

Mr. 103 changing into three different elements.

Mr. 103 changing into three different elements.


  • Although this character was originally introduced during DC's Earth-One era of publication, their existence following the events of the 1985–86 limited series Crisis on Infinite Earths remains intact. However, some elements of the character's Pre-Crisis history may have been altered or removed for Post-Crisis New Earth continuity, and should be considered apocryphal.
  • His code name Mister 103 (and later, Mr. 104) is a reference to the number of elements discovered in the periodic table up to those times. Currently, the table has 118 elements.



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Doom Patrol Villain(s)
This character, team or organization, is or was primarily an enemy of the Doom Patrol at some point in their career. This pertains to all incarnations of the Patrol throughout history. Including but not restricted to their arch-enemies the Brotherhood of Evil. This template will categorize articles that include it into the category "Doom Patrol villains."