Detective Antonio Vega (born Manuel Santi, Jr.) is a fictional character on the long-running American soap opera One Life to Live. The role was originated on July 10, 1995 by Kamar de los Reyes, who left in August 1997 and made an appearance in 1998. De los Reyes returned in 2000 and has been portraying the character ever since. Robert Montano took over the role of Antonio for seven episodes in May 2007 while de los Reyes recovered from surgery.