• 
  Nikki Crawford

  Julie Martin
• 
  Francesca Fanti

   Simona Rossi (17 episodes, 2012-2013)
• 
  Sean Gunn

  Jason O'Brien
• 
  Hannah Herzsprung

   Manta (13 episodes, 2011-2013)
• 
  David Clayton Rogers

  Kenneth Lubahn
• 
  Francesco Martino

  Matteo Spina
• 
  Samuli Vauramo

  Topi Kuusela
• 
  Amir Arison

  Dr. Gurveer

• 
  Lela Loren

   Francesca Rossi (11 episodes, 2012-2013)
• 
  Daniel Caceres

  Anthony
• 
  Hannah Simone

  Leena
• 
  Melvin Abston

  Lee Martin
• 
  Caitriona Balfe

  Breanna Sheehan
• 
  Daniel Guillon

  Dusty
• 
  Benjamin Clarke

  Francis Peters

• 
  James Urbaniak

  Francis Peters
• 
  Eloisa Wheatley

  Alice
• 
  Alexis Denisof

  Conall Sheehan
• 
  Daniel Guillón

  Dusty