Agent Elvis

Matthew McConaughey

Elvis (voice)

Kaitlin Olson

CeCe Ryder (voice)

Johnny Knoxville

Bobby Ray (voice)

Niecy Nash-Betts

Bertie (voice)

Tom Kenny

Scatter (voice)

Don Cheadle

The Commander (voice)

Fred Armisen

Charles Manson (voice)

Priscilla Presley

Priscilla Presley (voice)

Carlos Alazraqui

Acting

Tara Strong

Acting

Cree Summer

Acting

Chris Elliott

Timothy Leary (voice)

Jason Mantzoukas

Howard Hughes (voice)

Jim Meskimen

Acting

Ilia Volok

Acting

Gary Anthony Williams

Acting

Baz Luhrmann

The Director (voice)

Dee Bradley Baker

Acting