Book 1
Cotton FBI - Episode 01
Mario Giordano & Frank Keith
Book 2
Cotton FBI - Episode 02
Peter Mennigen & Frank Keith
Book 3
Cotton FBI - Episode 03
Jan Gardemann & Sharmila Cohen
Book 4
Cotton FBI - Episode 04
Alexander Lohmann & Sharmila Cohen
Book 5
Cotton FBI - Episode 05
Linda Budinger
Book 6
Cotton FBI - Episode 06
Peter Mennigen
Book 7
Cotton FBI - Episode 07
Mara Laue & Sharmila Cohen
Book 8
Cotton FBI - Episode 08
Peter Mennigen
Book 9
Cotton FBI - Episode 09
Alfred Bekker & Sharmila Cohen
Book 10
Cotton FBI - Episode 10
Peter Mennigen