Marsan, Baddiel and Riley were amongst those who addressed the crowds.
It is thought to be the largest gathering of its kind since the Battle of Cable Street in 1936.
Events surrounding that momentous battle were re-told in the BBCs 2021 dramaRidley Road,which starred Marsan and Oberman.

Chief Rabbi Ephrain Mirvis, Tracy-Ann Oberman, Eddie Marsan, Rachel Riley, Maureen Lipman and Vanessa Feltz on November 26 in LondonGuy Smallman/Getty Images
