Thousands of Democrats — delegates, party members, politicians, and celebrities — filled Chicago’s United Center this week to nominate Vice President Kamala Harris and Governor Tim Walz of Minnesota for president and vice president. Here are some of the notable people spotted in the arena.

Thursday

Ms. Harris accepted her party’s nomination, speaking about her middle-class roots and calling for unity with a “new way forward.” Before she spoke, members of her family took turns at the lectern, including her sister Maya, niece Meena, and step-daughter Ella. Several celebrities were spotted in the crowd.

Wednesday

The convention’s third night featured speeches by several up-and-coming party stars, former President Bill Clinton, and a surprise appearance by Oprah Winfrey. After several guests highlighted Mr. Walz’s average-Joe persona and background as a football coach, he officially accepted the Democrats’ vice-presidential nomination.

Tuesday

Several Democratic governors, including J.B. Pritzker from the convention’s host state of Illinois, were seated with their delegations during a ceremonial roll call. A playlist of songs and a performance by the rapper Lil Jon soundtracked the night.

Monday

The convention’s first night featured remarks by Hillary Clinton and a torch-passing speech by President Biden. “America, I gave my best to you,” he said, reciting a phrase from the song “American Anthem” by Gene Scheer. Several members of Mr. Biden’s family were among the crowd, and audience members held up signs reading, “Thank you Joe.”