Philippe Biondi is Scapy’s author. He has also written most of the documentation.
Pierre Lalet, Gabriel Potter, Guillaume Valadon are the current most active maintainers and contributors.
Fred Raynal wrote the chapter on building and dissecting packets.
Peter Kacherginsky contributed several tutorial sections, one-liners and recipes.
Dirk Loss integrated and restructured the existing docs to make this book.
Nils Weiss contributed automotive specific layers and utilities.