Cobalt is a series of comics written by Greg and designed by Walter Fahrer, published for the first time in 1971 in the Tintin magazine. Cobalt and Paprika Assistant conduct investigations worldwide to find missing people. A short history [Cobalt, tooth and nail (8 pages)] and 4 long stories [Fugue for four hands (45 pages), The Treasure of the cobra (30 pages) The assassinated recalcitrant (30 pages) and the wonderful zombie ( 30 pages)] were published between 1971 and 1975 in the Tintin magazine.
- Robert Cobalt: He calls himself "Intelligent, virile and sober deserve a substantial increase.."
- Paprika: Cobalt Assistant. "Her luscious mouth serves only lead to his stomach and when it is not full, on utter nonsense." Said Cobalt.
- Dabel: Patron of the "Service Missing Persons" where Cobalt works. "He has strong breath. When we worked for him, we can ALL face." Said Cobalt.