Dexter Hartman is a fictional character from the BBC soap opera EastEnders, played by Khali Best. His debut was on 7 January 2013. Dexter is the grandson of Cora Cross and son of her illegitimate daughter, Ava Hartman. Dexter's storylines include his friendships with Jay Brown and Lola Pearce

Cora Cross is a fictional character from the BBC soap opera EastEnders, played by Ann Mitchell. Cora is the mother of Tanya Branning, Rainie Cross and Ava Hartman and the grandmother of Lauren and Abi Branning. Cora initially appeared from 11 to 15 April 2011, and returned as a regular character on 28 July. Cora is described as having "a brash, outspoken attitude and does not care who she offends", deemed "an archetypal East End matriarch" and Inside Soap says that Cora is a "brash, loud lady who likes to tell everyone what she thinks and has absolutely no shame."