| Author | Mike Tucker and Robert Perry |
|---|---|
| Series |
Doctor Who book: Past Doctor Adventures |
|
Release number
|
5 |
| Subject | Featuring: Seventh Doctor Ace |
| Set in | Period between Survival and Matrix |
| Publisher | BBC Books |
|
Publication date
|
6 October 1997 |
| Pages | 279 |
| ISBN | |
| Preceded by | Business Unusual |
| Followed by | The Roundheads |
Illegal Alien is a BBC Books original novel written by Mike Tucker and Robert Perry and based on the long-running British science fiction television series Doctor Who. It features the Seventh Doctor and Ace, as well as the Cybermen.
Illegal Alien was originally under consideration as a three-part script for the 1990 season of Doctor Who. It was never produced as the programme ceased production in 1989.