Toni is a fictional character in the television series Peep Show and is portrayed by Elizabeth Marmur. She appears only in Series 1 and 2.
She is the next-door neighbour of Mark and Jeremy, and an object of their lust throughout the first series of the show. She is separated from her husband Tony at the beginning of Series 1, but the couple reunite during Series 2, although they are still seen arguing. Her father died when she was aged three and she may subconsciously be seeking a "daddy substitute".
During her childhood she regularly went skiing, and has two sisters; one with cancer, and one half-sister whom Jeremy briefly dated. She is opinionated and sexually liberal and engages in casual sex with Jeremy on several occasions. In an early episode, she engages in pyramid selling of cleaning products, but at the end of Series 2, she is shown working as a supervisor in a call centre. Her final appearance is in Wedding, and it is unknown why she did not return.