Reggie is a lemur that Sterling Archer stole during a drunken night of partying.
At first, he was quite unmanageable as he got into Sterling's pudding cups (and also bit a prostitiute). He has since become more tame. Woodhouse named the Lemur after Reggie Thistleton, the pilot he served under during World War I. He also taught the lemur to tie off his arm to help him shoot up heroin and work the stereo ("Be a lad. Put on some Mingus.").
- In "Honeypot," the lemur first appears in Archer's Apartment as part of the aftermath of a night of crazy partying.
- In "Job Offer," the lemur assists Woodhouse in shooting up heroin.