list of people who have access 20 but aren't active developers:

[~] $ grep -iv -f devs-sorted.txt ops-sorted 
Azarah             # suspended retirement
Borges             # developer anpereir
drobbins           # obvious reasons
Dr_Who             # developer tgall
frogger_           REMOVED# retired dev frogger
Halcyon            # a coming-back dev, bug 82645
hansmi             # not on the list anymore, retired
j4rg0n             REMOVED# retired, bug 53722
JeffW              REMOVED# retired, bug 92653
johcin             # developer nichoj, this was a tricky one, wasn't it? :-)
KillerX            # developer anant
LuciferC           # developer wrobel
mcummings          # retired, bug 105718
P-Y                # developer py, recruitment bug 182067
ReJ                # developer jer, r. bug 105602
RobC               # no idea, initials match an active dev pythonhead and two retired devs,  rac, hyakuhei
satyavel           REMOVED# retired developer satya (bug 48841)? wasn't seen for 4 years on freenode
tamran             REMOVED# not seen for a year on freenode, cloak says gentoo/developer/tamran but we have no records of such a person

list of people who have +v but never were gentoo developers:

[~] $ grep -iv -f ex-dev-sorted.txt voice-sorted.txt 
aja		   # 
alanh		   # 
bonsaikitten	   # former developer patrick
chipig		   # 
Daijo		   REMOVED# inactive for 16 weeks
doc|mobile	   # gentoo/contributor
DrChandra	   # gentoo/user
emgent		   REMOVED# inactive for 17 weeks
[equilibrium]	   # gentoo/contributor
EvvL		   REMOVED# not seen for 38 weeks on freenode
ferret		   # gentoo/user
FieldySnuts        # gentoo/contributor
gaber		   # *.gentoo.pl admin
gibot		   # legal bot
glbt		   # legal bot
infowolfe	   # 
_j_		   # 
jeeves		   # legal bot
karleeto	   # 
kerframil	   # gentoo/user
kojiro		   # a recruit, bug 210267
lanalyst	   REMOVED# not seen for 17 weeks on freenode
lorelei		   # atheme/developer/nenolod
lstrojny	   # 
myhan		   REMOVED# not seen for over a year on freenode
ndansmith	   # gentoo/contributor
nesl247		   # archlinux/trusteduser
orangejello	   # 
OSXLiz		   REMOVED# not seen for 48 weeks
Psychoschlumpf	   # 
riksta		   # 
RiverRat	   # gentoo/contributor
rockoo		   REMOVED# not seen for 50 weeks
ServoFlame	   # legal bot
stoile		   # 
tancred		   REMOVED# not seen for more than 1 year
tomaw		   # freenode staffer
uniplex		   # 
warp0x00	   # 
yah|gum		   REMOVED# not seen for over 2 years

List of retired developers with 9 that haven't been active on freenode for long time:

cparrott           REMOVED# 34 weeks
curtis119          # 27 weeks
esammer            # 19 weeks
foser              # 21 weeks
hardave            # 16 weeks
idani_away         REMOVED# 2 years, 27 weeks
iggy|work          REMOVED# 3 years, 17 weeks
joem               REMOVED# 42 weeks
kugelfang          # 25 weeks
lisa[NY]           REMOVED# 4 years, 51 weeks
malverian[work]    REMOVED# 1 year, 50 weeks
ming-easy          REMOVED# 1 year, 46 weeks
rockoo             REMOVED# 50 weeks
soulse-            REMOVED# 46 weeks
tercel             REMOVED# 38 weeks
^tigger^           # 25 weeks
usata              REMOVED# 1 year, 37 weeks
zeypher            REMOVED# 1 year, 27 weeks