History of character is unknown.
- This version of the character is exclusive to the continuity of the DC Animated Universe and is an adaptation of Mark Desmond/Blockbuster. The original character was created by Gardner Fox and Carmine Infantino and first appeared in Detective Comics #345.
- Blockbuster was voiced by Dee Bradley Baker.
- 4 Appearances of Mark Desmond (DCAU)
- 2 Images featuring Mark Desmond (DCAU)
- Quotations by or about Mark Desmond (DCAU)
- Character Gallery: Mark Desmond (DCAU)