Lois Sadler
Portrayed by Crista Flanagan
First appearance The Hobo Code
Final appearance The Color Blue
Gender Female
Employer Sterling Cooper Advertising Agency
Occupation Switch Board Operator, Secretary


Lois Sadler was a switch board operator and eventually a secretary at Sterling Cooper Advertising Agency.

As switchboard operator, she often listened in on a phone conversation between Salvatore Romano and his mother as they speak Italian, and asked the other secretaries about him, obviously smitten with him. Later, she ran into Sal when visiting the art department and bids him farewell by saying "ciao, ciao", which she heard him say on the phone. ("The Hobo Code")

After Peggy became a copy writer, Lois became Don Draper's secretary. She was later reprimanded by Peggy for making a snide remark after she asks where Don was. Later, Joan Holloway chastises her for crying at work because of what Peggy said, telling her to do it at home. ("For Those Who Think Young") She was eventually fired by Don for incompetence, or, as he put it, for not "managing people's expectations". ("The Benefactor")

Later, when she was questioned by Ken Cosgrove, Paul Kinsey, Sal, and Harry Crane about certain unusual activities happening at Sterling Cooper, she informed them of the merger with Puttnam, Powell, and Lowe. She also made them promise to take her off of the switchboard if any of them managed to keep their jobs. ("Meditations in an Emergency")

After the merger, she became Paul's secretary. She was enlisted by Paul, Harry, and Ken to prank call Peggy in response to Peggy's want ad for a roommate. ("The Arrangements") Later, while celebrating at Joan's farewell party, she took a turn in driving the John Deere mower that Ken had brought in after landing an account with them. The inexperienced secretary has difficulty in controlling her steering and ended up running over the foot of Guy MacKendrick, a British man who was poised to replace Lane Pryce as head of Sterling Cooper. ("Guy Walks Into an Advertising Agency") Miraculously, she was not fired after this, as she was seen rousing a drunken Paul. ("The Color Blue")


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Mad Men Characters
Draper's Past Don DraperAbigail WhitmanArchibald WhitmanAdam WhitmanMack JohnsonLieutenant Don DraperAnna DraperPattyStephanie Horton
Draper and Hofstadt Family Betty HofstadtSally DraperRobert DraperEugene DraperGloria MasseyEugene Hofstadt
New York Suburb CarlaGlen BishopHelen BishopFrancine HansonArnold WayneSuzanne FarrellEdna Keener
Sterling Cooper Advertising Agency Roger SterlingBertram CooperJoan HollowayHarry CraneFreddy RumsenSalvatore RomanoKen CosgrovePaul KinseyHerman PhillipsBurt PetersonGreta GuttmanHollisJimmy BarrettWarren McKennaDaleBobbie BarrettRoger Sterling, Sr.
Secretary Peggy OlsonJane SiegelAllisonHildyLois SadlerMarge
Client Rachel MenkenLee Garner, Jr.Elliot LawrenceConrad HiltonAnnabelle MathisCrab Colson
Campbell Family Pete CampbellTrudy VogelBud CampbellTom VogelJeannie VogelJudy CampbellAndrew Campbell
Olson Relation Anita Olson RespolaKatherine OlsonJohn GillGerry RespolaMark KearneyJoyce RamsayAbe Drexler
London Lane PryceAlec MartinSaint John PowellGuy MacKendrickHarold FordJohn HookerRebecca PryceRobert Pryce
Francis Family Henry FrancisEleanor FrancisPauline Francis
New York City Beth DawesHoward DawesMidge DanielsJennifer CraneJim HobartMargaret SterlingMona SterlingKitty RomanoWalter EmersonBethany Van NuysCynthia CosgroveGail HollowayGreg HarrisRuth HarrisKevin HarrisMorris Ginsberg
Sterling Cooper Draper Pryce Faye MillerStan RizzoMichael GinsbergJoey BairdDanny SiegelMargie KochBill Mitford
Secretary Ida BlankenshipDawn ChambersScarlettCarolineSandy Schmidt
Client Herb RennetBob FinleyThomas FillmoreAkira TakahashiHachi Saito
Calvet Family Megan CalvetEmile CalvetMarie Calvet
New York Sylvia RosenJuliaPhoebe
Cutler, Gleason, and Chaough Jim CutlerFrank GleasonTed ChaoughSmitty SmithKurt SmithNan Chaough
Affair CandaceJanineToni CharlesJoy
Character Lyle EvansDavey KelloggJim HobartPerry DemuthJack HammondRalph Stuben