[4][5] His television roles included: Raguideau in Napoleon and Love (1974); Gnat in the TV film Alice Through the Looking-Glass (1973); Joseph's Brother in the TV version of Joseph and the Amazing Technicolor Dreamcoat (1972); Gideon in It's Awfully Bad for Your Eyes, Darling (1971); Luko in Ace of Wands (1971); Eddie in Bright's Boffins (1971); Imaginary Man in Six Dates with Barker (1971); Wee Georgie in That's Your Funeral (1971); Dennis in Tales of Unease (1970); in Ken Dodd & the Diddy Men (1969); Goblin in Knock Three Times (1968) with Hattie Jacques; Bobin in Ooh La La!

(1968); various roles in The Stanley Baxter Show (1967); Hobgoblin in Kenilworth (1967); Greenwater in The Forsyte Saga (1967);[6] Bank Teller in Beggar My Neighbour (1967); Nonesuch in The Corridor People (1966); Morris Todd in The Wednesday Play (1966); in Frankie Howerd (1966); Operator in Theatre 625 (1965); Opium in A Slight Case of... (1965); in Hugh and I (1965); in Going, Going, Gone!

Wadmore in The Big Noise (1964); in World of His Own (1964); R. Sammy in Story Parade (1964); Sandy McKinley in Dr. Finlay's Casebook (1964); Ship Tailor in Dixon of Dock Green (1964), and Attendant in The Dark Island (1962).

[7] Film appearances include; The Jeweler in The Fantastic Four (1994); Joe Hartford in All I Want Is You... and You... and You... (1974);[8] Frog Footman in Alice's Adventures in Wonderland (1972);[9] Lucky Charm Seller in Up the Chastity Belt (1972);[10] Odius in Up Pompeii (1971);[11] Clown in Countess Dracula (1971); Wee Georgie in Winning the Ashes (1971);[12] Dr Ponti in Pussycat, Pussycat, I Love You (1970); Nathaniel Winkle in Pickwick (1969); Popov's assistant in Diamonds for Breakfast (1968),[13] and in Up Jumped a Swagman (1965).

[4][16] Among the many young actors mentored by Trigger was the American Lenny Von Dohlen, who later was to appear in Twin Peaks; the two had first met in Oregon during a production of Loot by Joe Orton.