. . "Alena also known as Sledgehammer or Kojo Sledgehammer is an unknown young female hacker who works for a secret hacker Team known as Helix. She recently met with her personal hero Felicity Smoak and helped her clear John Diggle's name and tried to recruit her to join Helix."@en . . . "Alena"@en . . . "Sledgehammer"@en . "Sledgehammer (Kacey Rohl)"@en . . . . "Alena also known as Sledgehammer or Kojo Sledgehammer is an unknown young female hacker who works for a secret hacker Team known as Helix. She recently met with her personal hero Felicity Smoak and helped her clear John Diggle's name and tried to recruit her to join Helix."@en .