Vanessa Russell

Mark's roommate, who originally worked for the firm Toplyn and Toplyn, and then worked various odd jobs after quitting her job, before settling on working as an Emergency Medical Technician (which she would later be laid off from); was the daughter of rich parents, who later cut her off from her trust fund due to her extravagant spending; would later date Mark (after he successfully conspired to break up her latest relationship due to his jealousies over her boyfriend) and then be engaged to him by the end of season four.