An Afro-Cuban jazz drummer and percussionist and sometime member of Weather Report.

Born in Peru, Acuña played in local bands from the age of 10. At the age of 18 he joined the band of Perez Prado and in 1967 he moved to Puerto Rico. In 1974 Acuña moved to Las Vegas, working with artists such as Elvis Presley and Diana Ross.

The following year he joined the jazz-fusion group Weather Report, appearing on the albums Black Market and Heavy Weather.

Acuña left Weather Report in 1978, and became a session musician in California, recording and playing live with (among many others) Paul McCartney, Joni Mitchell, Ella Fitzgerald, Chick Corea, Plácido Domingo, former Weather Report bandmates Wayne Shorter and Joe Zawinul, Herbie Hancock, U2 and Carlos Santana.

In the 1980s, Acuna also recorded and toured with the Christian jazz band Koinonia, which featured session musician Abraham Laboriel.