From The Internet Movie Plane Database
Martin Sheen (Capt. Benjamin Willard)
Marlon Brando (Col. Walter E. Kurtz)
Robert Duvall (Lt. Col. Bill Kilgore
Laurence Fishburne (Tyrone 'Clean' Miller)
Dennis Hopper (Photojournalist)
Harrison Ford (Col. Lucas)
Numerous Hueys appear in the film during the first half, most memorably in the legendary "Ride of Valkyries" beach attack set piece.
These support the Air Cavalry Hueys.
These U.S. Air Force jets drop napalm after Kilgore finishes his attack.
Kilgore communicates with this plane, co-ordinating the napalm bombing.