2013–present: Career progression
Fazal's first release in 2013 was in a coming-of-age comedy film Fukrey, in which he portrayed the role of Zafar, a struggling musician. The film along with his performance received mixed responses from critics. Nishi Tiwari from Rediff.com said he wore a "dazed expression" throughout the film, and Saibal Chatterjee from NDTV felt his role was "underwritten".
The same year, Fazal appeared in the romantic comedy film Baat Bann Gayi, which was considered a parody of Shakespeare's The Comedy of Errors. He portrayed the dual roles of Kabir, a successful novelist from Singapore, and Rasiya Bihari, a local don. The film met with negative reactions from critics and failed at the box office, though Fazal was praised for his acting. Faheem Ruhani from India Today considered him an upcoming talent to "watch out for", while The Times of India affirmed he is "standing out" from the cast.
In 2014, Fazal appeared in a supporting role opposite Vidya Balan in the comedy-drama Bobby Jasoos. Initially, Fazal refused the role since he felt he had "nothing much to do in it", but later agreed because of the "unusual romance" between him and Balan. Fazal's role as Tasawur, a popular local TV anchor who helps a Hyderabadi woman who aspires to be a detective (played by Balan), was well received. Taran Adarsh of Bollywood Hungama described Fazal as a "complete revelation": "Although pitted against a powerhouse performer like Vidya, Ali makes his presence felt with a wonderful performance".
The same year he appeared in the film Sonali Cable opposite Rhea Chakraborty, where he portrayed the role of Raghu. Fazal did his first on-screen intimate scene for a song in the film along with Chakraborty. His acting received mixed response from critics, where many criticised him for "recent stereotyped roles". Mohar Basu from Koimoi commented, "Ali Fazal is not even close to what he is capable of. The actor has good potential and this film fails to unleash it", though Renuka Vyavahare of The Times of India felt he was "likeable in his character". Both films received mixed to negative response from critics and were declared to be box office flops.
Fazal next took the lead role in the psychological horror thriller Khamoshiyan (2015). He portrayed the role of Kabir, an alcoholic novelist, whose failed career and relationship forced him to move to Kashmir in search of an inspirational story. The film was a critical failure, though Fazal's performance was well received. Bollywood Hungama said: "He has a wide range of emotions that effortlessly inhabit his face". The Hindu critic Arjun Kumar described him as a "natural performer with effective screen presence".
Reportedly, Fazal was offered a role in the American political thriller television series Homeland, but he had to reject the offer since he had already commenced shooting for Khamoshiyan and ultimately the role went to Nimrat Kaur.
Fazal made his Hollywood film debut with a special appearance in the action film Furious 7, the seventh instalment in The Fast and the Furious film series. In the film review, The Hindu wrote: "Ali Fazal turns up in a fleeting cameo and before we could breathe in his presence he is ejected out of the scenery". Fazal said that he had only three scenes, but Subhash K. Jha from Bollywood Hungama considered those scenes "delightful".
Fazal was next seen in an Indo-American film, For Here Or To Go? which revolves around two Indian immigrants who find it difficult to build a successful life away from home. The film was played at many international film festivals. That same year, Fazal played the leading role in the Yash Raj Films youth studio Y-Films web series Bang Baaja Baaraat.
In 2016 Fazal played in Anand L. Rai's Happy Bhag Jayegi opposite Abhay Deol and Diana Penty. The film was a critical and commercial success. Fazal featured alongside Kalki Koechlin, in Soni Razdan's Love Affair, a fictionalised version of the 1959 Nanavati murder case. In addition, he has committed to star opposite Shriya Saran in Prakash Raj's romantic comedy Tadka.
In 2017, Fazal appeared in the sequel Fukrey Returns. He also starred in the British-American film Victoria & Abdul, which depicts the relationship of Queen Victoria (Judi Dench) and her confidant, Indian servant Abdul Karim. In 2018, he appeared in the spin-off Happy Phirr Bhag Jayegi and played Guddu Pandit in the web series Mirzapur. In 2019, he was cast in Milan Talkies, Prassthanam, and Netflix film House Arrest. In 2020 he continued his role of Guddu Pandit in Mirzapur season 2. He has also been cast in the film Death on the Nile as Andrew Katchadouriaan, a film based on Agatha Christie's novel of the same name.
In 2021 he turned producer. He started his own film production company named Pushing Buttons Studios with Richa Chadha.
In 2025, Fazal expanded to Tamil films with Mani Ratnam's Thug Life, playing a gangster. Several critics stated that he hardly had anything to do in the film. It underperformed at the box office.
In 2026, Fazal starred in the investigative crime thriller web series Raakh, which premiered on Amazon Prime Video on 12 June 2026. Set in 1970s Delhi and loosely inspired by the Ranga–Billa case, the series featured Fazal as Sub-Inspector Jayprakash alongside Sonali Bendre and Aamir Bashir.