Most famous political lobbyists and advocates of the Taliban in the West

Laili Helms. Laili Helms was the Taliban's best-known advocate in the West before the 9/11 attacks. Following the attacks, The New York Times described Helms, who is married to a nephew of the former CIA director Richard Helms, as the Taliban's "unofficial liaison to the West" [1]. During the Pashtun Monarchy in Afghanistan her family was part of Afghanistan's elite; both her grandfathers were ministers in the government of King Mohammad Zahir Shah. 

She is the right on the picture:

Diva Patang. Diva Patang is a Pashtun woman living in the United Kingdom. She has become famous since August 2021, when Afghanistan again fell to the Taliban, and she repeatedly justified their rule. 

On her twitter account she implied that armed anti-Taliban resistance members and leaders are thieves, while she has not condemned the imposed war, atrocities and human rights abuses of the Taliban against non-Pashtun Afghans.

Her tweet [2]:

Hamid Karzai. President of Afghanistan between 2001 and 2014. Karzai belongs to Popalzai Durrani branch of Pashtuns. Karzai lived in the USA before he became president. The Karzai family owns and operates several Afghan restaurants on the East Coast of the United States and in Chicago. James Risen of The New York Times and others stated that the half brother of Hamid Karzai, Ahmed Wali Karzai, may have been involved in the Afghan opium and heroin trade. Ahmed Wali Karzai was killed in 2011 by one of his security guards inside his house in Kandahar, raising the prospect of turmoil in a city widely seen as the key to the war in Afghanistan. [3] There are multiple interviews, in which Karzai called the Taliban 'our discontent brothers' and demanded the release of Taliban prisoners, who were caught because of terrorism or murder. Those freed Taliban later engaged in battles against Afghan soldiers.

Hamid Karzai:

Zalmay Khalilzad. Afghan-American diplomat belonging to the Noorzai of the Durrani Pashtun tribe. Khalilzad was the United States Ambassador to the United Nations under President George W. Bush and, briefly, President Barack Obama. Khalilzad's previous assignments in the Bush administration included Ambassador to Afghanistan from 2004 to 2005 and Ambassador to Iraq from 2005 to 2007. In 2017, he was considered for Secretary of State in the Trump administration. He served as the Special Representative for Afghanistan Reconciliation at the State Department from September 2018 to August 2021, in both the Trump and Biden administrations, brokering the US–Taliban deal and facilitating the final United States withdrawal from Afghanistan. Khalilzad is married to Cheryl Benard, an author and political scientist.

Hamdullah Mohib. Former deputy chief of staff to former Afghan president Ashraf Ghani. He is a Pashtun and according to his interview in the Washington Post, he is married to Lael Adams (born 1987), an American expert on Afghanistan, in 2011 [4]. But his wife is also said to be a Western agent, either of the American CIA or the British MI6. Furthermore, after his fleeing the Taliban several Western institutions, among others the British Oxford Union, invited him to enable him to justify his incompetence. Choosing him as Afghanistan's national security advisors gave the Western intelligence the power and opportunity to control Afghanistan's politics.

Ashraf Ghani. Ashraf Ghani has been the president of Afghanistan from 2014 to 2021. He belongs to the Pashtun tribe of the Ahmadzai, which belongs to the Ghilzai confederacy. Ghilzai is the tribe which committed a massacre in Isfahan, Iran in the 18th century, killing at least 3000 Shia Persians [5]. On the day the Taliban took over Kabul, Ghani fled with Mohib Afghanistan from Kabul airport towards United Arab Emirates. There are corruption allegations against him and Mohib that they took with them suitcases with millions of US dollars on the day they left Kabul. 

Those suitcases can be seen on pictures which show him, while getting on the airplane (probably they also have been deposed there before):

Jamil Qaderi. Jamil Qaderi is a Pashtun YouTuber and social media activist who most probably resides in Germany. Qaderi joins a number of young Pashtun Afghans, who live in the West and support the Taliban through the social channels. They are also called Taliban with neckties. On his YouTube channel Qaderi defames anti-Taliban groups and opposition members and shows support for high-ranking Taliban members.

His YouTube channel is called King of Youtube, and the following is a screenshot of his channel:

Roshan M.d Salih and other Islamists. Although this might sound strange but there are in fact many non-Afghans from Wahabi or Muslim brotherhood groups/backgrounds living in Belgium and supporting and propagating the Taliban mainly through his YouTube channels. One of them is UK-based Roshan Muhammed Salih, who according to his twitter account is Editor of British Muslim news site 5Pillars (5pillarsuk.com):

His twitter account looks as follows (on 13. Nov. 2022) [7]:

He was invited by the Taliban and reported from there positively, stating that people there are not oppressed.

Sources:

[1] https://www.nytimes.com/2001/11/27/world/a-nation-challenged-the-liaison-she-spoke-for-taliban-and-now-pays-a-price.html?scp=1&sq=Laili+Helms&st=cse&pagewanted=all

[2] https://twitter.com/DivaPatang

[3] https://www.theguardian.com/world/2011/jul/12/ahmed-wali-karzai-killing-sparks-fears

[4] https://www.washingtonpost.com/lifestyle/style/what-does-afghanistan-need-some-major-rebranding-says-its-32-year-old-ambassador/2016/04/21/2adb3a66-06e3-11e6-a12f-ea5aed7958dc_story.html

[5] https://www.iranicaonline.org/articles/asraf-gilzay-the-afghan-chief-who-ruled-as-shah-over-part-of-iran-from-1137-1725-to-1142-1729

[6] https://youtu.be/gEhjylR_xMA. Accessed 13. Nov. 2022.

[7] https://twitter.com/RmSalih. Accessed 13. Nov. 2022.