I was looking at my old Happy Jack promos from the late 2000s. Among others, I have

HJ-P1 Jack
HJ-P2 Cavewoman
HJ-P3 Hellboy
HJ-P4 30 Days of Night
HJ-P5 Vampirella
HJ-P7 Alice (Grimm Fairy Tales)

Was there no P6 ?

Anyone know if there is a P6 on this ?

What was the oversized Buffy card numbered?

I believe that someone told me that either the Bone card (XMAS-1) or the Milk and Cheese (HJ-MC1) were supposed to be P6. To my knowledge, there is no P6.

Regarding the Happy Jack sketch cards, I think they were P1 to P22 and there were also Series 2 P1 to P4.