Johnson (Don Gilet), who left her and Denise 20 years ago. She confronts him, revealing that she is his daughter but leaves before he responds. Two months later, Lucas appears. Chelsea is reluctant to see him but eventually agrees to go out for a birthday meal. However, she leaves on discovering that she has a half-brother, Jordan (Michael-Joel David Stuart). She buys drugs from Sean and steals money from work to buy more but gets beaten up by a group of girls. Tanya fires her and Patrick catches her taking cocaine. He locks her in her room and calls Lucas to help. When he arrives, Chelsea has escaped through the bedroom window. Lucas finds her in R&R nightclub, high on cocaine, and takes her home. Chelsea gets her job back at Booty. She falls in love with Theo Kelly (Rolan Bell), but upon dating, Chelsea feels excluded from Theo and his university friends. She later cheats on him with a footballer named Ellis Prince (Michael Obiora), who offers her drugs. A guilt-ridden Chelsea confesses her infidelity to Theo and despite his forgiving her, insists she cannot be with him and ends the relationship. She resumes her relationship with Ellis but Lucas finds the drugs Ellis gave her and confronts Chelsea. She runs away with Ellis, leaving a note for her family but returns on Libby's birthday, demanding to know why Libby's grandmother, Liz Turner (Kate Williams) is in Albert Square, forcing her to admit she has been visiting her father, Owen Turner (Lee Ross), in prison and is glad that he is going to be released. Chelsea is cautious of her family's safety when Owen returns to the Square, and pleads with him not to bring up the suspicious death of Lucas's ex-wife, Trina Johnson (Sharon Duncan Brewster), again as Denise was a suspect and could get in trouble. Chelsea and Roxy Mitchell (Rita Simons) both pursue Dr. Al Jenkins (Adam Croasdell), becoming rivals as the doctor is dating them both secretly. Chelsea assists Jordan in his protest to get a tree planted in Trina's memory and manages to win Al. However, just before Chelsea and Al get together, Roxy turns up at his office dressed as a nurse, so Chelsea leaves, embarrassed. Despite this, when Roxy inherits The Queen Victoria public house, she employs Chelsea as a barmaid. Denise sets Chelsea up on a blind date with an associate