Ex-housemates of PBB Double Up admired Gerald Anderson's acting prowess in the final episode of their suspense mini-series "Isla."

Unravel the mystery behind the strange death of each character on Your Song presents Isla as it steps on its final curtain call this Sunday.

The thrilling and suspense-filled episodes of Isla have attracted thousands of viewers to watch the mini-series every Sunday propelling the show to lead on its timeslot.

PBB ex-housemates Paul Jake Castillo, Hermes Bautista, Rica Paras, Riza Mae Patria, Tom Rodriguez, Sam Pinto, Cathy Remperas and Johan Santos, revealed that they were all amazed with how Gerald Anderson immersed himself in his character. Sam shared “Magaling talaga ni Gerald. You’ll see kung gaano siya ka-passionate sa craft niya. Marami akong natutunan sa kanya, na kahit simpleng galaw o movement lang in front of the camera, it will matter.”

Hermes agreed with Sam, “Na-starstruck ako kay Gerald. Kahit ilang beses na namin siya nakakasama sa set, astounded pa rin ako. At marami rin ako natutunan sa kanya talaga, aside from the director and the staff of Isla. Sa mata palang makikita mo na yung gusto niya iparating.”

Know the real killer as the truth explodes in Your Song presents Isla finale, this Sunday on ABS-CBN after ASAP XV.

Gerald Anderson is currently competing in the finals of Starmoter’s RP’s Sexiest Men 2010. To vote for him, follow the instructions here.