I assume you have BGT installed?
It's a common bug there for Edwin (at Mae'Var's), Viconia (at the stake) and Imoen (in the spellhold maze) to be missing.
code is
code:
CLUAConsole:CreateCreature("EDWIN9")
[/QUOTE]for his lvl 9 incarnation and higher numbers (11,12,13,14) for the others.
If you use BGT and want to keep old Edwin's stats hopefully you still have a savegame from BG1 before he left. Although it's supposed to work fluently it doesn't yet, so you have to CLUA in standard Edwin and start SKeeping him to his old values.