| Lionel Fanthorpe as Lionel Roberts
Dawn Of The Mutants
| | Badger UK | Jul 1959 | Paperback | 2 | | |
| Lionel Fanthorpe as Lionel Roberts
Time Echo
| | Badger UK | Nov 1959 | Paperback | 2 | | |
| Lionel Fanthorpe as Lionel Roberts
Cyclops In The Sky
| | Badger UK | Feb 1960 | Paperback | 1 | | |
| Lionel Fanthorpe as Lionel Roberts
The In-World
| | Badger UK | Aug 1960 | Paperback | 1 | | |
| Lionel Fanthorpe as Lionel Roberts
The Face Of X
| | Badger UK | Aug 1960 | Paperback | 2 | | |
| Lionel Fanthorpe as Bron Fane
Juggernaut
| | Badger UK | Oct 1960 | Paperback | 4 | | |
| Lionel Fanthorpe as Bron Fane
Last Man On Earth
| | Badger UK | Jan 1961 | Paperback | 1 | | |
| Lionel Fanthorpe as Lionel Roberts
The Last Valkyrie
| | Badger UK | Feb 1961 | Paperback | 0 | | |
| Lionel Fanthorpe as Lionel Roberts
The Synthetic Ones
| | Badger UK | Mar 1961 | Paperback | 0 | | |
| Lionel Fanthorpe as Bron Fane
Rodent Mutation
| | Badger UK | May 1961 | Paperback | 2 | | |
| Lionel Fanthorpe as Lionel Roberts
Flame Goddess
| | Badger UK | Jun 1961 | Paperback | 0 | | |
| Lionel Fanthorpe as Bron Fane
The Intruders
| | Badger UK | May 1963 | Paperback | 1 | | |
| Lionel Fanthorpe as Bron Fane
Somewhere Out There
| | Badger UK | Jul 1963 | Paperback | 3 | | |
| Lionel Fanthorpe as Leo Brett
The Alien Ones
| | Badger UK | Sep 1963 | Paperback | 1 | | |
| Lionel Fanthorpe as Bron Fane
Softly By Moonlight
| | Badger UK | Sep 1963 | Paperback | 3 | | |
| Lionel Fanthorpe as Lionel Roberts
Time Echo
| | Arcadia House USA | 1964 | Hardcover | 1 | | |
| Lionel Fanthorpe as Bron Fane
Unknown Destiny
| | Badger UK | Jan 1964 | Paperback | 1 | | |
| Lionel Fanthorpe as Bron Fane
Nemesis
| | Badger UK | Mar 1964 | Paperback | 2 | | |
| Lionel Fanthorpe as Bron Fane
Suspension
| | Badger UK | May 1964 | Paperback | 1 | | |
| Lionel Fanthorpe as Bron Fane
The Macabre Ones
| | Badger UK | Jul 1964 | Paperback | 1 | | |
| Lionel Fanthorpe as Bron Fane
Suspension
| | Vega USA | 1965 | Paperback | 1 | | |
| Lionel Fanthorpe as Bron Fane
U.F.O. 517
| | Badger UK | Dec 1965 | Paperback | 3 | | |
| Lionel Fanthorpe as Lionel Roberts
The In-World
| | Arcadia House USA | 1968 | Hardcover | 0 | | |
| Lionel Fanthorpe as Leo Brett
The Alien Ones
| | Tower USA | 1969 | Paperback | 1 | | |
| Lionel Fanthorpe as Leo Brett
The Alien Ones
| | Arcadia House USA | 1969 | Hardcover | 1 | | |