Cheryl Tunt (Judy Greer)Cheryl Tunt serves as the secretary to the head of the International Secret Intelligence Service (ISIS) Malory Archer, mother of top spy Sterling Archer.She sometimes goes by Carol, Cristal, or Corinna as the mood strikes her and claims to be 1/64 Cherokee Indian.Cheryl is quirky in the extreme displaying propensities for nymphomania, pyromania, sadomasochism-- in particular autoerotic asphyxiation-- and sniffing rubber cement. She has enjoyed extended stays at mental institutions. She has an aversion to those with afflictions and babiesShe has gotten around among ISIS and the various people associated with it.Cheryl has a very high opinion of her own intelligence which is not borne out in any demonstrable fashion. She does share Archer's gift for arcane references, however.Although she is nominally friends with Pam Poovey, the two spend a good deal of time in petty disagreements.