William Franklyn

William Franklyn was a British actor, perhaps best known for voicing the "Schhh... You Know Who" adverts for Schweppes from 1965 to 1973. He also performed on stage, film, television and radio, taking over from Peter Jones as "The Book" (the narrator) in the third, fourth and fifth radio series of The Hitchhiker's Guide to the Galaxy. He is also known for his portrayal of Sexton Blake for BBC Radio 4 in 1967.
Cast

Splitting Heirs
Andrews

The Satanic Rites of Dracula
Peter Torrence

The Snorkel
Wilson

Pit of Darkness
Richard Logan

Ooh...You Are Awful
Arnold Van Cleef

London Suite
Widley

That Woman Opposite
Ned Atwood

The Flesh Is Weak
Lloyd Buxton

Nutcracker
Sir Arthur Cartwright

Fury at Smugglers' Bay
Captain

Cul-de-sac
Cecil
The Big Deal
John Hamilton

Robert Rylands' Last Journey
Robert Rylands

The Big Day
Mr. T. Selkirk

Time Is My Enemy
Sgt. Peter Thompson

Quatermass 2
Dr. Tom Brand

Diana: Her True Story
Lord Mountbatten

The Love Match
Arthur Ford

Operation Diplomat
Dr. Gillespie

J.G. Ballard: A Profile
Readings (voice)

Above Us the Waves
No. 1, X2

The Intelligence Men
Colonel Grant

Danger Within
Capt. Tony Long

The Legend of Young Dick Turpin
Tom King
Woodland Harvest
Unknown

The Crowded Day
Studio Official