The directors and I think one or two of the artists worked on Cowboy Bebop, RahXephon, Gits, Eva, and Spriggan.
The music composer (which is my main attraction to the anime series) also worked on Arjuna, CCS, Cowboy Bebop, Dai-Guard, Escaflowne, Gits:SAC, Jin-Roh, Macross, RahXephon, Record of Lodoss War: Chronicles of a Heroic Knight, and Turn a Gundam.