At the age of 15, Bea would be cast as 20 year old lawyer Katrina Argos in the TV drama Kay Tagal Kang Hinintay. Her role on there would garner her first "Best Actress" nomination at the 2003 PMPC Star Awards (the youngest ever to be nominated in that category).
Kay Tagal Kang Hinintay make a hits for the John Lloyd and Bea loveteam. Bea and her loveteam John Lloyd make thier team up paved away after three successful teleseryes It Might Be You, Ikaw Ang Lahat Sa Akin and currently Maging Sino Ka Man and hit movies such as My First Romance where Bea Alonzo was named "Best New Movie Actress" at the 2004 PMPC Star Awards, Now That I Have You, Close To You, All About Love and the recent One More Chance, they are now known as one of the country's premiere loveteam.
Bea's Award are 2007 USTV Students Choice Awards, Best Actress for Maging Sino Ka Man,2006 Yes Magazine Awards, Most Popular Loveteam with John Lloyd Cruz,2006 Yes Magazine Awards, Young Female Superstar,2006 ANAK TV Seal Award, One of the Top 10 Most Well Liked Female Personality,2005 Miss FAMAS Screen Idol, FAMAS,2004 Princess of RP Movies for “Now That I Have You", Guillermo Mendoza,2004 Best New Movie Actress for “My First Romance", Star Awards for Movies,2003 Most Popular Love Team of RP Movies with John Lloyd, Guillermo Mendoza.