More than $5,200 had been raised as of Saturday afternoon on a GoFundMe for the 28-year-old Clifton native, recently diagnosed with Hodgkin's Lymphoma.
Castro is facing several rounds of chemotherapy treatment and has already endured one surgery and a slew of tests.
"This has been one of the toughest situations Bryan and I have had to go through," said his wife Cynthia, the page's founder, "but I know I have to stay strong and be his biggest support system through this journey."
Click here to follow Daily Voice Englewood and receive free news updates.