[@agentmanatee] Uh, you don't strictly need to do that as part of the character sheet, though I would certainly encourage introducing significant figures in your Legion other than your Primarchs, both as presences and plot advancers in areas beyond the Primarchs themselves and as NPCs in their own right. I could add in a section to the Legion sheet requesting that significant personae in its ranks are mentioned, who of course don't have to be Space Marines themselves.

Speaking of adding stuff to the sheets, a lot of you have mentioned your Primarchs being psykers, and we have at least one upcoming Primarch who's partially warp-dense, though not wholly soulless enough to qualify as a Pariah. So, I should ask: would it be prudent of me to include something in the Primarch sheet listing the character's [url=http://wh40k.lexicanum.com/wiki/The_Assignment]Assignment[/url] [url=http://warhammer40k.wikia.com/wiki/Psyker#Psyker_Grades]Level?[/url] Basically, how much psychic activity (or lack thereof) the Primarch shows off.