After an election where podcasts and influencers played an outsize role, conservatives were quick to declare that traditional media was dead.

Turns out a lot of it is just moving into the West Wing.

President-elect Donald J. Trump, whose rise was fueled by reality TV stardom, is once again turning to television to recruit the key cast members of his new administration.

The latest was Dr. Mehmet Oz, the former syndicated TV host, who was picked by Mr. Trump on Tuesday to oversee Medicare and Medicaid.

Dr. Oz follows Pete Hegseth, who could move straight from co-hosting the weekend edition of “Fox & Friends” to overseeing 1.3 million active-duty troops as defense secretary, and Sean Duffy, a Fox Business host and former star of MTV’s “The Real World,” who is now poised to run the Transportation Department. (His wife, Rachel Campos-Duffy, is Mr. Hegseth’s erstwhile “Fox & Friends” co-host.)

Mike Huckabee, Mr. Trump’s pick for ambassador to Israel, hosted a live Fox News show for seven years. Tulsi Gabbard, whom Mr. Trump has said he plans to nominate for national intelligence director, was a paid Fox News contributor until August. His choice for border czar, Tom Homan, was a contributor at the network until last week.

At this rate, the second season of the Trump administration may end up with more television stars than the first one.