Sid Gibson is a soap powder salesman who decides what he really needs is TV advertising. The problem is, he's absolutely broke. He calls upon his friend Arthur Ashton, who arranges to sneak a plug for Sid's suds into a live TV spectacular. The public goes bananas for the product but to maintain sales Sid and Arthur must arrange for ever more outrageous plugs on TV shows. The Ascots races, the Edinburgh Military Tattoo - no show is safe.
| Actor | Role |
|---|---|
 Arthur AskeyArthur Ashton | Arthur Ashton |
 Sidney JamesSid Gibson | Sid Gibson |
 Dermot WalshMartin Russell | Martin Russell |
 Olga LindoMrs. Burgess | Mrs. Burgess |
 Clive MortonNational TV Director General | National TV Director General |
| GGeorge MargoAssistant | Assistant |
 Lionel MurtonCommercial TV Director | Commercial TV Director |
 Bernard CribbinsJack | Jack |
 Kenneth ConnorAnxious Husband | Anxious Husband |
 Sally BarnesSally | Sally |
 Leigh MadisonDiana | Diana |
 Bruce SetonSupt. James | Supt. James |
 Tom GillMr. Langtree | Mr. Langtree |
 Richard CaldicotAssistant Director General | Assistant Director General |
 David NettheimProfessor | Professor |
 SabrinaHerself | Herself |
 Tommy TrinderHimself | Himself |
 Barbara WindsorTelephone Operator (uncredited) | Telephone Operator (uncredited) |
 Sam KyddRobber (uncredited) | Robber (uncredited) |
| DDickie HendersonHimself | Himself |