Mark Desmond (Prime Earth)
Real Name Mark Desmond
Current Alias(es): Blockbuster
General Information
Relatives Unnamed Mother[1]
Unnamed Father[1] (Deceased)[2]
Roland Desmond (Brother)[1]
Affiliations: Secret Society of Villains (formerly)
Fist of Cain
Characteristics Information
Status: Alive
Real World Information
First Appearance: Hawk and Dove (Volume 5) #6
Created by: Gardner Fox
Carmine Infantino

Mark Desmond was a chemist who attempted to create a biochemical treat that inhibits violent behavior, but backfire and turned him into Blockbuster. He has since been captured and put into various superhuman prisons such as Belle Reeve and S.T.A.R Labs. He recently became a member of the Fist of Cain.


Transforming into BlockbusterEdit

Being the only member of his family to not end up in jail or worse, Mark was a chemist whom attempted to create a biochemical treatment that would inhbit violent behavior. However, this backfired and transformed him into the angry behemonth known as Blockbuster. In turn his brother, Roland Desmond, used him for criminal means.

Having been later captured and taken to Belle Reve, he escapes and chased his brother, having also dealt with Superman in Metropolis. As he made his way into Gotham, he is later stopped by Batman, Robin, and Superman when Batman uses the Hypothalmus Inhibitor and Superman takes him down, putting him into S.T.A.R. Lab's custody. Grayson Annual #2

Hawk and Dove: First StrikesEdit

Having been controlled by a woman known as Necromancer, Blockbuster is used to steal an artifact in a Washington D.C. museum, promoting Hawk and Dove to team up with Batman and Robin as he made his way to Gotham City under the bidding of Necromancer. He is later defeated by both Hawk and Batman in combat and taken back into custody of S.T.A.R. Labs. Hawk and Dove (Volume 5) #6

Forever Evil: A.R.G.U.SEdit

Forever EvilEdit

Teen Titans: Rogue TargetsEdit

Fist of CainEdit

Powers & AbilitiesEdit


  • Blockbuster was created by Gardner Fox and Carmine Infantino, first appearing in Detective Comics Vol 1. However, in the rebooted Prime Earth continuity his first appearance as part of the DC Universe is in Rob Liefeld's New 52 Hawk and Dove series.
  • There's seems to be some sort of retcon in which took place within the Grayson Annual #2 in which Mark experiments on himself and is a chemist. This contrast to the origin presented in The Savage Hawkmen #18, in which he is receiving treatment to increase his intelligence and ability to remember by a scientist known as Dr. Payne and was a regular patient at Rest Haven and is later transformed into Blockbuster by the intervention of Professor Ziegler, father of Emma Ziegler and Hawkman's then girlfriend, whom is also transformed into a behemoth after exposed to a gas that initiated their transformation.


  • No trivia


  1. 1.0 1.1 1.2 Grayson Annual #2
  2. The Savage Hawkman #18