Calling International Resuce… a runaway rocket carrying three astronauts is heading for a collision course with the Sun… Impact imminent!
| Actor | Role |
|---|---|
 Peter DyneleyJeff Tracy / Professor Heinz Bodman (voice) | Jeff Tracy / Professor Heinz Bodman (voice) |
 Shane RimmerScott Tracy (voice) | Scott Tracy (voice) |
 David HollidayVirgil Tracy (voice) | Virgil Tracy (voice) |
 Matt ZimmermanAlan Tracy / TV Reporter (voice) | Alan Tracy / TV Reporter (voice) |
 David GrahamGordon Tracy / John Tracy / Brains / Kyrano (voice) | Gordon Tracy / John Tracy / Brains / Kyrano (voice) |
 Christine FinnTin-Tin Kyrano / Grandma Tracy (voice) | Tin-Tin Kyrano / Grandma Tracy (voice) |
 Jeremy WilkinVirgil Tracy / Operator Power / Tom (voice) | Virgil Tracy / Operator Power / Tom (voice) |
 Ray BarrettColonel Harris / Colonel Benson / Rick O’Shea (voice) | Colonel Harris / Colonel Benson / Rick O’Shea (voice) |
| JJohn TateSolarnaut Camp (voice) | Solarnaut Camp (voice) |
 Charles TingwellInternational Space Control Commander (voice) | International Space Control Commander (voice) |
 Sylvia AndersonProfessor Marshall (voice) | Professor Marshall (voice) |