Halloween is that one night when everyone gets to step out of reality and become someone or something else. This year, YouTuber IShowSpeed took that spirit to another level with his chilling version of DC’s Black Flash. His haunting look, complete with pitch-black eyes and unsettling energy, quickly caught everyone’s attention online. The performance did not just make for a viral moment, though; it conveyed to the masses how terrifying and fascinating this dark speedster really is. 

Hence, now that Black Flash is back in the spotlight, many are wondering where they can actually see him across the DC universe.

Black Flash, embodied by IShowSpeed for Halloween, made a chilling impression in The Flash season 3, emerging as a spectral force of death. First appearing in episode 16, Into the Speed Force, the terrifying figure haunted Barry Allen’s journey through the mysterious realm. He later returned in the season finale, Finish Line, to deliver a haunting reminder of the Speed Force’s power. Though brief, these appearances cemented Black Flash as one of the most fearsome and unforgettable entities in DC’s television universe.

The Flash season 3 aired from October 4, 2016, to May 23, 2017. In 2025, all nine seasons of the series can be streamed on Netflix in most regions. For those without Netflix access, notably, episodes are also available for purchase or rent on platforms like Amazon Prime Video and Apple TV, depending on regional availability. Black Flash, meanwhile, also has a different reference in pop culture.

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Anime aficionados would associate Black Flash with a different universe than DC, given its pivotal role in that realm.

In the anime Jujutsu Kaisen, Black Flash is a powerful technique that occurs when cursed energy is applied within a fraction of a second of a physical hit, increasing its impact many times over. It is a rare, almost instinctive feat that only a few sorcerers can achieve. Yuji Itadori’s precise execution of the move is iconic, symbolizing his enduring strength. Unlike DC’s eerie embodiment of death, this Black Flash means pure focus, explosive energy, and mastery of cursed power.

Whether haunting the Speed Force or amplifying cursed energy, Black Flash continues to blur boundaries between universes. IShowSpeed’s take on the character, meanwhile, did not just bring DC’s dark speedster back into conversation; it reminded everyone how creativity can make old legends feel new again. His chilling Halloween look easily deserves a spot among the best celebrity costumes of all time, blending fandom, fright, and flair in one unforgettable moment.

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What do you think of IShowSpeed’s Black Flash costume? And will you be watching The Flash soon? Let us know in the comments.