Colleen Patterson, played by Beth Toussaint (first season) and Stacy Haiduk (fifth season), is a recurring character seen on Melrose Place, the second series of the Beverly Hills, 90210 continuity, originally appearing in the first season.
Colleen was introduced as an ex-girlfriend of Jake Hanson's, and was initially presented with a generally sensitive and collected demeanor. She eventually contacted Jake and revealed that they had a young son named David. Though David was aware that Colleen's present husband was not his real father, Colleen wanted to maintain the familial stability in David's life. Jake eventually met the boy, keeping his own identity a secret, and agreed that David's present life was best for him.
When Jake visited her years later, Colleen revealed that she was getting a divorce. At this stage, the character, now portrayed by Stacy Haiduk, had developed a somewhat feistier and bolder personality, which meshed closer to Jake's and the rest of the Hanson family. The two eventually shared a kiss, but restrained themselves from exploring their feelings any further. Jake also spent time bonding with David.
Months later, Colleen and David visited Jake at Melrose Place. By this point, David had revealed to Jake that he was aware of their relationship. Eventually, Colleen reunited with Jake romantically, and Jake left town to live with her and their son.