| Schauspieler | Rolle | Synchronsprecher | ||
| Nathan Fillion Nathan Fillion | Richard Castle | Tobias Kluckert Tobias Kluckert | ||
| Stana Katic | Kate Beckett | Victoria Sturm Victoria Sturm | ||
| Ruben Santiago-Hudson | Roy Montgomery | Erich Räuker Erich Räuker | ||
| Molly C. Quinn | Alexis Castle | Jill Böttcher Jill Böttcher | ||
| Tamala Jones | Lanie Parish | Martina Treger Martina Treger | ||
| Seamus Dever | Kevin Ryan | Rainer Fritzsche Rainer Fritzsche | ||
| Susan Sullivan | Martha Rodgers | Katarina Tomaschewsky | ||
| Jon Huertas Jon Huertas | Javier Esposito | Felix Spieß Felix Spieß | ||
| Penny Johnson Jerald | Captain Victoria Gates | Liane Rudolph Liane Rudolph | ||
| Juliana Dever | Jenny Duffy-O'Malley | Nicole Hannak Nicole Hannak | ||
| Daisy Betts | A.J. | Julia Kaufmann Julia Kaufmann | ||
| Brian Howe | Aaron Lerner | Helmut Gauß Helmut Gauß | ||
| Tom Amandes | Aaron Stokes | Florian Krüger-Shantin Florian Krüger-Shantin | ||
| Karan Oberoi | Achmed | Imtiaz Haque | ||
| Jim Abele | Adam Green | Viktor Neumann Viktor Neumann | ||
| Jared Kusnitz | Adam Lane | Fabian Kluckert Fabian Kluckert | ||
| Fred Koehler | Adam Pike | Sven Plate Sven Plate | ||
| Fredric Lehne | Addison Smith | Jörg Hengstler Jörg Hengstler | ||
| Tim Fields | Agent | Armin Schlagwein | ||
| Darin Heames | Agent Chuck Martinez | Bernhard Völger Bernhard Völger | ||
