Who Is Bloodwork, The Flash's Newest TV Villain?

Barry Allen's fight to protect Central City is about to get a lot bloodier in The Flash Season 6 with the addition of the DC villain Bloodwork. Announced this afternoon at Comic-Con International, Heroes alum Sendhil Ramamurthy has joined the cast as Dr. Ramsey Rosso, a former colleague of Caitlin Snow whose experiments transform into what The CW describes as "the most chilling villain Team Flash has ever faced." But who, or what, is Bloodwork?

While many of the villains Team Flash has battled onscreen -- Zoom, Gorilla Grodd, Savitar, Captain Cold -- have been part of the Scarlet Speedster's comic book rogues gallery for decades, Bloodwork is a new addition.

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Introduced in 2017 in The Flash #29, by Joshua Williamson and Neil Googe, Ramsey Rosso was born with hemophilia, and as an adult became a coroner so he could experiment with blood samples in hopes of finding a cure. As a result of his research on bodies (some of them metahuman), Ramsey was able to render himself invulnerable, incapable of bleeding.

However, that discovery was accompanied by unintended side effects: Ramsey found he gained the ability to control the blood of others, to congeal it. When confronted by The Flash in the morgue, he was able to bring the hero to his knees with a mere thought.

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It didn't end there, though. Calling himself Bloodwork, Ramsey battled The Flash in Central City, and transformed into a massive monstrosity of oozing blood whose tendrils enveloped downtown and lashed out at the speedster. Barry described him as "like a heart beating out of control," and so employed the Negative Speed Force as a defibrillator to deliver a jolt and stop Ramsey's blood from flowing, returning him to his human form.

Ramamurthy's Ramsey on The Flash isn't a coroner who steals blood samples from the morgue, but instead a brilliant physician the world’s leading expert on hematological oncology. However, it appears he will follow the same, dark path as his comic book counterpart, leading him to become Bloodwork.

Returning Oct. 8 on The CW, The Flash stars Grant Gustin, Candice Patton, Carlos Valdes, Danielle Panabaker, Tom Cavanagh, Jesse L. Martin, Danielle Nicolet, Hartley Sawyer and Jessica Parker Kennedy.

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