Don Draper (Jon Hamm)
In Season 1: A married womanizer with impeccable hair and clothing.
In Season 7: An almost twice-divorced womanizer with impeccable hair and clothing.
Betty Draper/Francis (January Jones)
In Season 1: A woman who aims to be Stepford-esque in her wifely duties but can occasionally come unhinged.
In Season 7: A woman who is increasingly disenchanted with domestic life but doesn't seem to have a solution for her problems.
Peggy Olson (Elisabeth Moss)
In Season 1: A secretary with a knack for copywriting and some high-maintenance bangs.
In Season 7: An advertising powerhouse with a no-bullshit attitude and no time for those bangs.
Roger Sterling (John Slattery)
In Season 1: A silver fox with a penchant for sharp dressing and dismissive retorts.
In Season 7: A silver fox who went a little too '70s with his mustache, tbh.
Sally Draper (Kiernan Shipka)
In Season 1: The adorable daughter of a marriage you can just tell is not going to work out.
In Season 7: A self-assured teenager who is trying to make her own path despite her parents' issues.
Joan Holloway/Harris (Christina Hendricks)
In Season 1: A confident office manager who kept everyone in line and wasn't afraid to speak her mind.
In Season 7: A confident partner who is ready to burn the whole thing down if people don't wise up and treat her with the respect she deserves.
Pete Campbell (Vincent Kartheiser)
In Season 1: A conniving accounts man with a thing for Peggy and a full head of hair.
In Season 7: A conniving accounts man with a divorce in his past and a hairline that's given up on him.
Ken Cosgrove (Aaron Staton)
In Season 1: A clean-cut and thoughtful member of the Sterling Cooper team.
In Season 7: A man who is so completely and utterly fed up with the shit that his job has put him through, he takes his firing as an opportunity for revenge.
Bert Cooper (Robert Morse)
In Season 1: The enigmatic head of the agency with a love for East Asian design.
In Season 7: Dead (but not before regaling us all with a lovely rendition of "The Best Things in Life Are Free").
Harry Crane (Rich Sommer)
In Season 1: Not respected as much as he should be by his colleagues.
In Season 7: Same, but with more hair and longer sideburns.