San Antonio Mayor Julian Castro
Bio - Castro, 37, was selected from relative obscurity to make the keynote address, the first Latino to give the keynote at a Democratic convention. A Stanford- and Harvard-educated lawyer, he was elected San Antonio mayor two years ago.
Time slot - Premium. He delivered the DNC keynote address Tuesday night.
Message - In an emotional speech, Castro spoke of his achievements coming from a modest background as the son of a working-class mother. He emphasized that under the Democratic policies of Obama, realizing your dreams is possible.
Best line - "The American Dream is not a sprint, or even a marathon, but a relay."
Post-DNC bounce - Huge. Castro was unknown before this, but his speech has definitely pushed him onto a list of the next generation of Democratic leaders. Could a presidential bid be in his future?
Newark Mayor Cory Booker
Bio - A Yale-trained lawyer who famously moved into a housing project in Newark, Booker has been a celebrity politician since before being elected in 2006. His relationship with the Obama campaign cooled earlier this year, when he called attacks on private-equity funds "nauseating."
Time slot - Poor. Booker definitely got the worst time to speak, opening the convention on Tuesday at 6 p.m.
Message - Booker was charged with delivering the party platform for the next four years. He spoke about growing the middle class, providing access to education and healthcare.
Best line - "Being asked to pay your fair share isn't class warfare; it's patriotism."
Post-DNC bounce - Minor. Already in the upper ranks of celebrity mayors, Booker just burnished his star a little bit, but the story of his battling a broken ankle on Tuesday will only add to his lore.
Chicago Mayor Rahm Emanuel
Bio - A former congressman who served as Obama's first chief of staff, Emanuel was elected mayor of Chicago in 2011. He's about to start fundraising for Obama's super PAC, Priorities USA.
Time slot - Decent. His Chicago ties got him a slot between 9 and 9:30 p.m. Tuesday.
Message - Emanuel's speech was about "the president I served." He spoke about the challenges of handling an economic recession, two wars and the global financial crisis.
Best line - "We faced a once-in-a-generation moment in American history, and fortunately for all of us, we have a once-in-a-generation president."
Post-DNC bounce - None. Still, Emanuel doesn't need one with his well-known national name.
Bio - The second-term mayor recently became president of the U.S. Conference of Mayors, which has boosted his national profile.
Time slot - Fair. Nutter was up on the high-profile final night, but spoke early in the evening, about 6:40 p.m.
Message - He was all about education and how it is key to growing the middle class.
Best line - "Here are some wiser words from a great Philadelphian, Ben Franklin. He said, 'An investment in knowledge pays the best interest.' Sounds like Mitt Romney could stand to learn a thing or two about investing."
Post-DNC bounce - Minor at best. Getting a speaking slot was a big deal for Nutter in proving that he plays with the big boys. But the timing meant that his impact was likely minimal.
Contact Catherine Lucey at email@example.com or 215-854-4172. Follow her on Twitter @PhillyClout. Read her blog at phillyclout.com.