Boyz:
Gael Garcia Bernal
Benicio Del Toro
Vincent Cassel (in Ocean's Twelve especially)
Evgeni Tsyganov (a Russian actor)
Edward Norton and Joaquin Phoenix are also up there
Girls:
Rene Russo in Thomas Crown Affair
Rachel Brice, a bellydancing goddess
Rani Mukherjee, a Bollywood goddess
Jessica Alba, Salma Hayek and Angelina Jolie in their not-so-skinny times
Reese Witherspoon is also incredibly fascinating