A being of incredible power, known as a codemaster, arrives in Mainframe, demanding they bring out another codemaster who he believes is hiding there.
| Name | Type | Role | |
|---|---|---|---|
| Martin Borycki | Writer | ||
| Long John Baldry | Guest Star | ||
| Michael Robison | Director | ||
| Gavin Blair | Director | ||
| Ian Pearson | Director | ||
| Phil Mitchell | Director | ||
| Lane Raichert | Director |