Most famous for his starring roles in the Bangladeshi series Housefull, Sakin Sarisuri, Family & Friends, and Aim in Life, Karim is also known for his role in the 2007 Bengali film Daruchini Dwip.
He began his acting career as a theater performer, working for a decade and a half with a Bangladeshi stage company called Nattokendro.
He co-starred with Shahir Huda Rumi and Nusrat Imroz Tisha in a film titled Television. The movie became Bangladesh's selection for the Academy Awards' Best Foreign Language Film category.
He was born and raised in Dhaka, Bangladesh. In 2004 he married Robena Reza Jui and they later welcomed a child.
He and actress Suborna Mustafa both had successful television careers in Bangladesh.