Before she joined GMA Network, she was part of ABS-CBN's Talent Management & Development Center (known as Star Magic).
She starred in GMA's afternoon Philippine television drama Pati Ba Pintig Ng Puso?.
She hosted a segment in GMA's gag show Bitoy's Funniest Videos, titled "Just 4 Kikays".
Marquez, alongside Drew Arellano, was also a co-host in Coca-Cola: Ride To Fame, a reality talent show.
[1] Marquez's first relationship (ex-boyfriend) was with Arman de Guzman, with whom she had two children, Keiley and Kyler.