We also briefly see the Doctor wield her iconic sonic screwdriver, which now has a distinctive yellow glow.
Whittaker was asked during a fan question if she ever had to correct anyone on set for misused pronouns, and admitted that when she auditioned for the role she was actually the one gendering the Doctor as male in her head, telling the crowd, "We are indoctrinated to not ever put ourselves a little bit higher".
The trailer also gave us a good peek at the Doctor's three new companions:Bradley Walsh (Drunk History: UK) as Graham, Mandip Gill (Hollyoaks) as Yasmin Khan, and Tosin Cole (Star Wars: The Force Awakens) as Ryan Sinclair.
There's a new lead writer - Chris Chibnall, who wrote the British crime drama Broadchurch - as well as a new Doctor, new companions and whole new adventures.
Last Christmas the 12th Doctor, played by Peter Capaldi, transformed (or "regenerated" as it's called in Whovian lingo) into Whittaker.
About Whittaker's casting, Chibnall said, "I wrote three special scenes and Jodie and other people came in and read". "I really love television when it is a communal experience..." There are new faces (the Doctor and her friends, of course), new worlds (including a Mars-like one with burning vehicles and one that eerily resembles a '50s-era suburban neighborhood), and of course, a new sonic screwdriver. Watch the show's new trailer above.
"It will be exciting when women aren't treated as a genre, but as a cast member", she said.
Chibnall added that this season is "The flawless jumping off point for the person in your life who has never watched Doctor Who".
"Doctor Who has limitless appeal so it should represent the people watching the show".
Splashy debut aside, the panel was very cautious to reveal too much in the way of details on the forthcoming new season - and that includes a premiere date (beyond the fall). It's really important for us this season, especially.
The new season of Doctor Who arrives on the BBC in October.