The alt-right -- a collection of organizations, individuals and internet memes that advocate against immigration and for white nationalism and are widely seen as racist -- stepped onto the mainstream political stage on Thursday when Hillary Clinton name-checked it in a speech decrying racism and her opponent, Donald Trump.

The broadly defined alt-right and Donald Trump have mostly embraced one another throughout the 2016 presidential election. But as the movement has come into greater focus, its various threads have become more apparent.

Like all movements, the alt-right umbrella encompasses several ideologies and personalities. That said, we explored some of the more prominent adherents, below.

Jared Taylor

Taylor has in many ways led the drive for respectability among white nationalists in the United States.

Equipped with a philosophy degree from Yale University he earned in 1973, Taylor has written several books on race -- White Identity: Racial Consciousness for the 21st Centuryis one -- and runs the racist online publican American Renaissance.

Taylor's ideal world, according to him, involves members of different races deciding to live among each other and going about their separate lives.

“This should be a voluntary thing," he told Mashable. "I’m not deporting people, I’m not kicking people out.”

A white nationalist, he abhors the term "white supremacist," saying it;s often used to "discredit" white people.

But Taylor has been associated with the white supremacist organization, Council of Conservative Citizens, and wrote The Color of Crimein an attempt to show that black people are more prone to crime than white people. He also described black people as "barbaric" following Hurricane Katrina.

Andrew Anglin

If Taylor's brand of white nationalism is commonly referred to as "dressed up" white supremacism, then it may make sense to think of Anglin's alt-right world as the "dressed down" millennial version.

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The Southern Poverty Law Center defines many within the alt-right movement as "white nationalists," but they label Anglin a neo-Nazi, and it doesn't take long to understand why.

Anglin runs The Daily Stormer, whose name comes from the Nazi publication "Der Stürmer." And whereas Taylor is not known as anti-Semitic, Anglin's website has a vertical entitled "Jewish Problem," and he's said he's looking forward to the day that a statue of Hitler is erected in Berlin.

His website comes with a disclaimer that that it does not stand for violence and will not tolerate violent rhetoric in comments, yet it has a vertical called "Race War" that invites plenty of as-yet unchecked violent rhetoric.

Anglin has cultivated a millennial following through racist, crude and insulting language/memes that he once described as "extremely unhelpful."

Matthew Heimbach

Matthew Heimbach, 25, became a known alt-right entity during his time at Towson University, in Maryland, where he founded the White Student Union and a group called Youth for Western Civilization.

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Heimbach denounced violence and expressed support for black nationalism as much as white nationalism in a 2015 Al Jazeera Americaprofile. But it seems his words were either geared to veil his actual beliefs, or that he's since begun to move away from his nonviolent rhetoric.

Heimbach made headlines again earlier this year when he was seen shoving a black woman protesting at a Trump rally. He's also hung out with the Aryan Terror Brigade, a group the SPLC describes as "violent," and which has taken to more anti-Semitic rhetoric.

Richard Spencer

Spencer has been described as "arguably the father" of the alt-right.

He founded a web magazine called Alternative Rightin 2010 and currently heads up the National Policy Institute, a think tank that is a pillar of "academic racism."

Spencer puts a lot of emphasis on looking professional and prides himself on his academic background (via the University of Virginia and the University of Chicago). The SPLC describes him as a "radical white separatist."

He recently made a trip to Ohio for the Republican National Convention, where he could be found holding a sign that said, "Wanna talk to a racist?"

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Peter Brimelow

Brimelow, born in 1947, is from the United Kingdom and is vehemently against non-white immigration to the U.S.

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He gained prominence in anti-immigration circles thanks to his racist, xenophobic, anti-immigration book Alien Nation, published in 1995.

Four years later, he started the Center for American Unity, which publishes vdare.com, an anti-immigration site named for Virginia Dare, the first white English person born in what would become the U.S.

Greg Johnson

Johnson edits one of the pillars of alt-right publishing: Counter-Currents.

Like Spencer, Taylor and others, he has said that Trump and the alt-right are not truly linked.

He is a proponent of ethno-nationalism, and has said he is against "the Jewish diaspora in the United States and other white societies."

Mike Enoch

Enoch runs yet another popular alt-right publication, The Right Stuff.

The Right Stuffis starkly against mainstream American conservatism, and, as it says on its "About Us" page, enjoys "severely rustling jimmies among the childish and regressive left-wing."

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