 Frederick CulleyRoger Bacon | Roger Bacon |
 Laurence OlivierVincent Lunardi | Vincent Lunardi |
 Franklin DyallJerome de Ascoli | Jerome de Ascoli |
 Henry VictorOtto Lilienthal | Otto Lilienthal |
 Hay PetrieTiberius Cavallo | Tiberius Cavallo |
 John TurnbullVon Zeppelin | Von Zeppelin |
| CCharles LefeauxLouis Bleriot | Louis Bleriot |
| BBryan PowleyGeorge Cayley | George Cayley |
 Alan WheatleyGiovanni Alfonso Borelli | Giovanni Alfonso Borelli |
 John AbbottJean-François Pilâtre de Rozier | Jean-François Pilâtre de Rozier |
 Charles FrendNarrator (voice) | Narrator (voice) |
 Edward Ashley(uncredited) | (uncredited) |
| IItalo BalboItalo Balbo (archive footage) (uncredited) | Italo Balbo (archive footage) (uncredited) |
 Memo BenassiFrancesco Lama di Brescia (uncredited) | Francesco Lama di Brescia (uncredited) |
| DDenville BondOliver of Malmesbury (uncredited) | Oliver of Malmesbury (uncredited) |
| TTom Campbell BlackTom Black (archive footage) (uncredited) | Tom Black (archive footage) (uncredited) |
| CCharles CarrettLatham's Manager (uncredited) | Latham's Manager (uncredited) |
 Andrea ChecchiZoroastro (uncredited) | Zoroastro (uncredited) |
| AArthur CloustonArthur Clouston (archive footage) (uncredited) | Arthur Clouston (archive footage) (uncredited) |
| PPaul CodosPaul Codos (archive footage) (uncredited) | Paul Codos (archive footage) (uncredited) |
 Bryan Coleman(uncredited) | (uncredited) |
 Derrick De Marney(uncredited) | (uncredited) |
 Amelia EarhartAmelia Earhart (archive footage) (uncredited) | Amelia Earhart (archive footage) (uncredited) |
| DDon Gemmell(uncredited) | (uncredited) |
 Cameron HallDr. John Jeffries (uncredited) | Dr. John Jeffries (uncredited) |
| HHenry HallattJean-Pierre Blanchard (uncredited) | Jean-Pierre Blanchard (uncredited) |
| PPearl Hay(uncredited) | (uncredited) |
| RRonnie HepworthBoy (uncredited) | Boy (uncredited) |
| CCharles HickmanOrville Wright (uncredited) | Orville Wright (uncredited) |
| BBert HinklerBert Hinkler (archive footage) (uncredited) | Bert Hinkler (archive footage) (uncredited) |
