On April 12, 1961, Yuri Gagarin is hurtling through space. Down below, 7-year-old Billy Wilson keeps watching the skies, itching for an encounter with an alien being. When he discovers a mysterious stranger in a house nearby, events take a sinister turn. -GusF
| Actor | Role |
|---|---|
| SSam HickmanBilly Wilson | Billy Wilson |
 Billy HartmanJim Wilson | Jim Wilson |
| BBilly McElhaneyEddie Brogan | Eddie Brogan |
| GGerry SlevinGrandad Wilson | Grandad Wilson |
| SSheila GrierBunty Wilson | Bunty Wilson |
| AAndrew DallmeyerMr. Morris | Mr. Morris |
 Kate SandisonAlice Johnson | Alice Johnson |
| DDale MartinSammy Brogan | Sammy Brogan |
| AAndrew BarrFlint | Flint |
| CCraig SmithAlex Wilson | Alex Wilson |
 Steven McNicollDerek Brogan | Derek Brogan |
| BBridget McCannMrs Stone | Mrs Stone |
| LLaura Elizabeth SmithMary Davidson | Mary Davidson |
| BBilly MarrEric Grady | Eric Grady |
| RRobert PattersonBus Conductor | Bus Conductor |
| BBrian BroganSpud McKenzie | Spud McKenzie |
 Paul BirchardAmerican Scientist | American Scientist |
| JJonathan BattersbyTV Announcer | TV Announcer |
| VVivienne DixonTeacher | Teacher |
| SSandy NielsonHeadmaster | Headmaster |
| JJames Leslie WallerLaurel | Laurel |
| MMalcolm McGeachyHardy | Hardy |