On screen
Cast
30 credited performers
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)
Tara Strong
Character not listed
Jim Meskimen
Character not listed
Jason Mantzoukas
Howard Hughes (voice)
Gary Anthony Williams
Character not listed
Priscilla Presley
Priscilla Presley (voice)
Carlos Alazraqui
Character not listed
Ed Helms
Robert Goulet (voice)
Chris Elliott
Timothy Leary (voice)
Cree Summer
Character not listed
Dee Bradley Baker
Character not listed
Christina Hendricks
Roxanne Ryder (voice)
Fred Armisen
Charles Manson (voice)
Ilia Volok
Character not listed
Baz Luhrmann
The Director (voice)
Tony Cavalero
Character not listed
Gary Cole
President Nixon (voice)
George Clinton
George Clinton (voice)
Ego Nwodim
Zara (voice)
Michael-Leon Wooley
Character not listed
Simon Pegg
Paul McCartney (voice)
Craig Robinson
Jackie (voice)
Jamie Costa
Character not listed
Kieran Culkin
Gabriel Wolf (voice)
Eric Bauza
Character not listed