Television and film
Wadia first came to prominence in BBC sketch show Goodness Gracious Me, playing characters such as Mrs "I can make it at home for nothing!" and one half of The Competitive Mothers. She took over from her Goodness Gracious Me co-star, Meera Syal, in the role of Rupinder in the sitcom All About Me alongside Jasper Carrott and Natalia Kills. In 2007, Wadia was cast as Zainab Masood in the long-running BBC soap opera EastEnders. Her last appearance as Zainab in EastEnders was on 8 February 2013. She also had a minor role in EastEnders in 1994, playing a nurse named Viv who treated Michelle Fowler (Susan Tully) when she was hospitalised with a gunshot wound. She also appears as Zainab in the 2010 spin-off EastEnders: E20.
Wadia has also made several guest appearances in various British comedies and dramas, such as 2point4 Children, The Vicar of Dibley, Thin Ice Chambers, Holby City, Murder in Mind, Doctors and New Tricks. She was a regular presenter on the ITV topical chat show, Loose Women (2005–2006). Wadia also appeared in the E4 teen drama Skins, playing the mother of Anwar Kharral, and, in March 2008, she appeared in the BBC Three drama West 10 LDN. Wadia played the wedding caterer in the comedy film Bend It Like Beckham.
She played a role as the housekeeper in the film I Can't Think Straight, directed by Shamim Sarif. The film revolves around two women from Indian and Palestinian upper-class immigrant communities in the UK who fall in love, and Wadia is the housekeeper who rebels at her high-handed Palestinian employer in small ways. She also had a minor part in the film Code 46 (2003). She starred in a BFI/BBC film Sixth Happiness along with Firdaus Kanga in 1997. The film explores sexuality, disability and the Parsis, a small westernised minority in India, of which Wadia herself is a member. She has also starred alongside Rishi Kapoor playing his wife in a Bollywood film titled Namaste London. She voices the title role in Ethelbert the Tiger – a children's programme. She also had a role in Doctor Who as a doctor in the episode "The Eleventh Hour".
In July 2013, Wadia appeared in All Star Mr & Mrs. In September 2013, she appeared in ITV's Big Star's Little Star. Since December 2013, Wadia has starred in Still Open All Hours as Mrs Hussein. In January 2015, it was announced that Wadia would have a guest role in Holby City, as an established neurosurgeon Annabelle Cooper. The role was for five episodes. In April 2017, she appeared as Khadija in Finding Fatimah, a British romantic comedy. In 2019, as a last-minute casting call, and in "more of a cameo", as Wadia said, she played the minor part of "Zulla" in the live action remake of Aladdin directed by Guy Ritchie. In 2020, she appeared in the role of Anna Masani in the ninth season of the popular BBC drama series Death in Paradise. Also in 2020, she had a small part in the fifteen minute drama Isolation Stories alongside Sheridan Smith which was filmed via webcam due to the COVID-19 pandemic in the United Kingdom.
From September 2021, Wadia was a contestant for the nineteenth series of Strictly Come Dancing, paired with professional dancer Neil Jones. The couple were the first to be eliminated, in the second week. In February 2023, Wadia appeared in an episode of BBC Four's Spring Walks, exploring Swaledale in North Yorkshire. Then in April 2023, she appeared as Binita Prabhu in the BBC soap opera Doctors.
