Dr. Sierra Sinclair

Fresh from the Modern Age Marvel universe, Dr. Sierra Sinclair made her debut in The Spectacular Spider-Men #2 in 2024, brought to life by artist Humberto Ramos. She's a newly minted presence in the Spider-Man corner of the Marvel universe, sharing pages with heavy hitters like Spider-Man himself, Miles Morales, and Electro, as well as compelling figures like Sha Shan Nguyen and Shelly Conklin. Her appearances across both The Spectacular Spider-Men and Miles Morales: Spider-Man suggest she's already weaving herself into multiple threads of the web-slinging world. With only nine catalog appearances so far, she's a character worth watching closely — the kind of intriguing new addition that dedicated Marvel readers love to discover early.