Alfred Pennyworth (Batman 1966 TV Series)

This version of the character is exclusive to the continuity of the television series Batman and is an adaptation of Alfred. The original character was created by Don Cameron and Bob Kane and first appeared in Batman #16.
Alfred was portrayed by Alan Napier.
In the 2016 animated film, Batman: Return of the Caped Crusaders, Alfred was voiced by Steven Weber.

Trivia

Alfred never used a surname on-screen and was never referred to by one. However, he is given the surname Pennyworth in the Batman '66 comic books.
Alfred is the only person who knows the secret of Batman and Robin's dual identities. He also knows the secret of Batgirl's dual identity, though Batman and Robin are unaware of this.
It was Alfred who originally made the costumes for Batman and Robin.
Alfred usually answers the Batphone, which sits on the desk in Bruce Wayne's study like a normal everyday telephone. However, Commissioner Gordon and Chief O'Hara do not know the identity of "the Voice" — to quote O'Hara in "The Entrancing Dr. Cassandra".
Alfred has a look-alike cousin, Egbert, who works as night watchman at the Gotham City Reservoir ("The Joker's Provokers"), but — unlike Alfred — he has perfect eyesight. He also has a second cousin, Cuthbert, whose taxicab Alfred uses to drive around Londinium ("The Londinium Larcernies", "The Foggiest Notion", and "The Bloody Tower"), but Cuthbert himself is only referred to and never seen on-screen.
Alfred is also the look-alike of Lord Easystreet, one of the prospective customers at Minerva's mineral spa ("Minerva, Mayhem and Millionaires"). However, we never get to meet the real Lord Easystreet.