John Leeson

John Leeson: 

"Affirmative, Master."

John Leeson is best known as the voice of K-9 in 'Doctor Who' (and latterly, 'The Sarah Jane Adventures'), although two other actors have stepped in on occasion to play the mechanical mutt. 

Appearing in one of Timothy's dreams of escape from his mother
in the tragicomic 'Sorry' with Ronnie Corbett

Some still feel that the idea of a clunky fibreglass-shelled robo-rover - complete with vintage '70s computer font branding - could drag the nation's favourite sci fi serial perilously close to 'Metal Mickey' territory, yet he seems to be generally accepted by fans, even popping up to add some knowing nostalgia to the show in the David Tennant era.
      
Those who want to spot John Leeson when not acting through an electronic prop have a difficult task, but he has popped up in a few TV bit parts over the years, starting in the late '60s. As Victor, for example, Timothy's librarian mate in 'Sorry', and a smattering of background characters in anything from 'Take Three Girls', 'The Barretts Of Wimpole Street' and 'Vanity Fair', to 'Minder', 'Allo Allo', and 'Tucker's Luck'.

He made a convincing petty official and was quite likely to appear with a clipboard to infuriate and bewilder unwitting victims on 'Beadle's About'.

Checking Arthur's passport in a late episode of 'Minder'

He's in feature films 'Tarka The Otter' (1979) and 'Whoops Apocalypse' (1988) was also the actor in an early version of the Bungle bearsuit in the children's TV show 'Rainbow' for a short while in 1972.    

Leeson as the first, alarmed-looking, Bungle in 'Rainbow'

John Leeson-imdb

Roy Holder

Roy Holder: 

† Jun 15 1946 – Nov 9 2021

Chunky, cheeky-faced chap who began as a child actor in 'Whistle Down The Wind' (1961) and various schoolboy adventures in the early '60s and peaked at the height of cult TV. He was Chas in 'Ace Of Wands', clad in the same sort of unlikely trendy gear he wore in the movie of 'Loot' (1970) or the much-loved absurd biker-horror 'Psychomania' (1973). 

With Hywel Bennett in the film version of Joe Orton's 'Loot' (1970)

As Chas in the mystical adventure
series, 'Ace Of Wands'

A steady stream of roles over the next three decades included 'Z Cars', 'Dr Who' (Peter Davison's swansong - 'The Caves Of Androzani' in 1984), and as Timothy Lumsden's only mate, Frank, in the Ronnie Corbett vehicle, 'Sorry'. Solid stuff.

Poster for 'Psychomania' (1973)

In the Ronnie Corbett BBC sitcom 'Sorry!'

Roy Holder - imdb profile