In this weekly series, Rahul Desai lists 50 of Hindi cinema’s favourite “third wheels” – that is, memorable characters whose roles are little more than fleeting cameos and little less than supporting turns – since 1990. There will be no particular order: just a colourful recollection of emblematic faces who’ve left us craving for more. After Peepli Live in 2010, one of India’s finest actors, Raghubir Yadav, was in danger of drifting into C-grade oblivion after starring in unmentionables like Gandhi To Hitler and Mainu Ek Ladki Chahiye. In the former, his role as the German dictator exchanging letters with Mahatma Gandhi was as misguided as the kitschy film, while in the latter, he played a ‘comical’ lawyer who defends a rapist by behaving like a lecherous old…