| Jupiter Jones |
First Investigator |
(Justus Jonas) |
|
| Pete Crenshaw |
Second Investigator |
(Peter Shaw) |
| Bob Andrews |
Records and Research |
| Mr. Roger Denton |
producer |
| Mr. Harry Norris |
assistant director |
| Mr. Jeff Morton |
skin diver at the film |
| Sam Robinson |
mug |
| Sheriff Nostigon |
Chief of Police of Fishingport |
| Christos 'Chris' Markos |
greek boy at the age of the Three Investigators |
| Bill Ballinger |
he had been detained for robbery of a money transporter |
| Jim Ballinger |
he had been detained for robbery of a money transporter |
| Mrs. Barton |
innkeeper of the Three Investigators |
| Mr. Tom Farraday |
security man of the film company |
| Dr. Wilbur |
owner of the dilapidated amusement park on Skeleton Island |
| Sally Farrington |
for 25 years she had been strucked by lightning at the amusement park |
| Captain One-Ear |
buccaneer in the 18th century |
| Mr. Alfred Hitchcock |
|
[(white in brackets) = german name]
|