Terence Longdon

1980s

1. 1986
   

   The Return of Sherlock Holmes

   Isa Whitney · 1 episode

2. 1984
   

   Sherlock Holmes

   Isa Whitney · 1 episode

   86
3. 1980

   The Sea Wolves

   Malvern

4. 

   The Martian Chronicles

   Wise Martian · 1 episode

   67

1970s

1. 1978
   

   The Sandbaggers

   Commodore (Intelligence) · 1 episode

   86
2. 

   The Wild Geese

   Anonymous Man

   70
3. 1977

   That's Carry On!

   Private Miles Heywood / Ted York (archive footage)

4. 1976
   

   The New Avengers

   Commander East · 1 episode

   72

1960s

1. 1968
   

   The Expert

   Patrick Hawkes · 1 episode

2. 1965

   The Return of Mr. Moto

   Jonathan Westering, MI5

3. 

   Thirty-Minute Theatre

   Donald Fell · 1 episode

4. 1964

   Clash by Night

   Martin Lord

5. 1961
   

   What a Whopper

   Vernon

   56
6. 

   On the Fiddle

   Air Gunner

7. Out of the Shadow

   Mark Robert Kingston

8. Carry On Regardless

   Montgomery Infield-Hopping

9. 

   The Avengers

   George Neville · 1 episode

   82
10. 1960
    

    Danger Man

    Saunders · 1 episode

    77

11. Carry On Constable

    Herbert Hall

1950s

1. 1959
   

   Ben-Hur

   Drusus

   84
2. 

   No Hiding Place

   TV · 10 Seasons · Crime · Drama

3. Carry On Nurse

   Ted York

4. 1958

   Carry On Sergeant

   Private Miles Haywood

5. 

   Another Time, Another Place

   Alan Thompson

   58

6. The Silent Enemy

   Lt Bailey

7. 

   Ivanhoe

   Sir Waldermar · 2 episodes

8. 1957

   Dangerous Exile

   Sir Frederick Venner

9. Doctor at Large

   George

10. 

    Emergency: Ward 10

    Freddy Waters · 1 episode

11. 1956
    

    The Man Who Never Was

    Larry

    77
12. 

    Helen of Troy

    Patroclus

    62

13. Jumping for Joy

    John Wyndham

14. 1955

    Simon and Laura

    Barney

15. Strange Experiences

    Fighter Pilot · 1 episode

16. 

    Mr. Arkadin

    Secretary

    71
17. 1954

    Forbidden Cargo

    A.P.O. at Customs Launch

18. 1953

    Appointment in London

    Dr. Buchanan

19. 1952

    Angels One Five

    Falk, Pimpernel Pilot

20. Never Look Back

    Alan Whitcomb