Larry Wall: Our hero. Overdue for a McArthur prize.
Developers of Perl 6 (and Parrot)
Audry Tang: Started original Perl 6 compiler implementation in Haskell. Ended the Dark Ages of compiler-side Perl 6 development. Spread "-Ofun" and commit bits to the masses. Also overdue for a McArthur prize.
Perl 6 (and Parrot) Testers
Developers using Perl 6 (and Parrot)
Darren Duncan: DB-related stuff.
Stevan Little: "Moose is the new Perl" Moose meta-object system. Stevan's journal.
Bernhard Schmalhofer: Has been updating PHP on Parrot.
Mark Stosberg: I'm working on porting CGI::Application to Perl 6 and having fun along the way.