The three investigators want to go on a road trip during their vacation, but just as they are about to set off, the phone rings and an unknown caller hands the trio of detectives their latest case: the archaeologists belonging to the secret society Sphinx are carrying out illegal excavations and selling the stolen art treasures. Their next target is the supposedly cursed island of Makatao.
| Actor | Role |
|---|---|
 Julius WeckaufJustus Jonas | Justus Jonas |
 Nevio WendtPeter Shaw | Peter Shaw |
 Levi BrandlBob Andrews | Bob Andrews |
 Momo BeierJelena Charkova | Jelena Charkova |
 Filip SchnackSkinny Norris | Skinny Norris |
 Katja LechthalerMaria Svenson | Maria Svenson |
 Andreas PietschmannProfessor Phoenix | Professor Phoenix |
 Jördis TriebelAunt Mathilda | Aunt Mathilda |
 Florian LukasUncle Titus | Uncle Titus |
| PPascal BuchsbaumJuan | Juan |
 Simon KluthJoseph Saito Hadden | Joseph Saito Hadden |
 Jannik SchümannOlin | Olin |
 Amal KellerAnne | Anne |
| FFlorentine BehrendBarbara Jefferson | Barbara Jefferson |