
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.

Cul-de-sac
1966 · as Cecil

Splitting Heirs
1993 · as Andrews

Danger Within
1959 · as Capt. Tony Long

The Satanic Rites of Dracula
1973 · as Peter Torrence

Quatermass 2
1957 · as Dr. Tom Brand

Nutcracker
1982 · as Sir Arthur Cartwright

The Love Match
1955 · as Arthur Ford

Above Us the Waves
1955 · as No. 1, X2

The Crowded Day
1954 · as Studio Official

Fury at Smugglers' Bay
1961 · as Captain

The Snorkel
1958 · as Wilson

Pit of Darkness
1961 · as Richard Logan

Diana: Her True Story
1993 · as Lord Mountbatten

That Woman Opposite
1957 · as Ned Atwood

The Intelligence Men
1965 · as Colonel Grant

London Suite
1996 · as Widley

The Legend of Young Dick Turpin
1965 · as Tom King

Ooh...You Are Awful
1972 · as Arnold Van Cleef