Known For
Highlander II: The Quickening
(1991)
Story
The Golden Voyage of Sinbad
(1973)
Screenplay and Story
Dr Jekyll & Sister Hyde
(1971)
Screenplay
Captain Kronos: Vampire Hunter
(1974)
Writer
See No Evil
(1971)
Writer
The Betrayal
(1957)
Writer
Full Filmography
Writing
At the Stroke of Nine
(1957)
Screenplay
The Depraved
(1957)
Writer
The Betrayal
(1957)
Writer
Three Crooked Men
(1958)
Story
A Woman of Mystery
(1958)
Screenplay
The Secret Man
(1958)
Screenplay
The Child and the Killer
(1959)
Story
High Jump
(1959)
Writer
Innocent Meeting
(1959)
Story
The Great Van Robbery
(1959)
Writer
Mission in Morocco
(1959)
Screenplay
The Tell-Tale Heart
(1960)
Writer
Identity Unknown
(1960)
Writer
The Pursuers
(1961)
Story
Return of a Stranger
(1961)
Writer
Highway to Battle
(1961)
Writer
The Court Martial of Major Keller
(1961)
Story
Fate Takes a Hand
(1961)
Writer
Two Wives at One Wedding
(1961)
Writer
Station Six-Sahara
(1963)
Screenplay
Curse of the Voodoo
(1965)
Writer
The Corrupt Ones
(1967)
Screenplay
And Soon the Darkness
(1970)
Original Story and Screenplay
Dr Jekyll & Sister Hyde
(1971)
Screenplay
See No Evil
(1971)
Writer
The Woman Hunter
(1972)
Writer and Story
The Persuaders!
(1973)
Writer
The Colour of Blood
(1973)
Writer
The Golden Voyage of Sinbad
(1973)
Screenplay and Story
Lady Killer
(1973)
Writer
Possession
(1973)
Writer
Spell of Evil
(1973)
Writer
An Echo of Theresa
(1973)
Writer
One Deadly Owner
(1973)
Writer
The Eyes Have It
(1973)
Writer
A Place to Die
(1973)
Writer
Ring Once for Death
(1973)
Writer
Someone at the Top of the Stairs
(1974)
Writer
I'm the Girl He Wants to Kill
(1974)
Writer
In the Steps of a Dead Man
(1974)
Writer
A Killer With Two Faces
(1974)
Writer
Once the Killing Starts
(1974)
Writer
Captain Kronos: Vampire Hunter
(1974)
Writer
A Coffin for the Bride
(1974)
Writer
The Next Scream You Hear
(1974)
Writer
Screamer
(1974)
Writer
Kiss Me and Die
(1974)
Writer
Sign it Death
(1974)
Writer
A Killer in Every Corner
(1974)
Writer
Come Out, Come Out, Wherever You Are
(1974)
Writer
K is for Killing
(1974)
Writer
Death to Sister Mary
(1974)
Writer
Sleepwalker
(1975)
Writer
Nurse Will Make It Better
(1975)
Writer
A Midsummer Nightmare
(1975)
Writer
Death in Deep Water
(1975)
Writer
Won't Write Home, Mom–I'm Dead
(1975)
Writer
Where the Action Is
(1975)
Writer
The Crazy Kill
(1975)
Writer
Good Salary, Prospects, Free Coffin
(1975)
Writer
The Next Voice You See
(1975)
Writer
Murder Motel
(1975)
Writer
Night is the Time For Killing
(1975)
Writer
If It's a Man – Hang Up!
(1975)
Writer
Nightmare for a Nightingale
(1975)
Writer
The Next Victim
(1975)
Writer
Kill Two Birds
(1975)
Writer
Dial a Deadly Number
(1975)
Writer
The Masqueraders
(1980)
Writer
The Watcher in the Woods
(1980)
Screenplay
Timestalkers
(1987)
Teleplay
Perry Mason: The Case of the Glass Coffin
(1991)
Writer
Highlander II: The Quickening
(1991)
Story
Perry Mason: The Case of the Reckless Romeo
(1992)
Writer
Perry Mason: The Case of the Heartbroken Bride
(1992)
Teleplay and Story
Justine: A Private Affair
(1995)
Writer
Jane Doe: How to Fire Your Boss
(2007)
Story
Surgery
(2015)
Writer
Acting
Production
And Soon the Darkness
(1970)
Producer
Dr Jekyll & Sister Hyde
(1971)
Producer
Captain Kronos: Vampire Hunter
(1974)
Producer
Directing