Family nickname of Catherine “Cathy” Margaret Rowan Lane (Patty Duke), the Scottish relative of Patty Lane (Patty Duke) on the sitcom THE PATTY DUKE SHOW/ABC/1963-66.
Cathy is identical in appearance to her cousin Patty Lane who lives in the United States. Her father, Kenneth Lane (William Schallert), who calls Cathy “Kit Kat,” works for the Chronicle as a foreign correspondent. Kenneth is the twin of Patty’s father, Martin Lane.
When Cathy moves to the United States from Scotland, she lives with Patty’s family and attends Brooklyn Heights High School. While both girls are identical in physical appearance, their style, tastes and attitudes are nearly opposite as mentioned in the lyrics of the TV series theme song.
The Patty Duke Show Theme Song Lyrics
Meet Cathy, who’s lived most everywhere,
From Zanzibar to Barclay Square.
But Patty’s only seen the sights
A girl can see from Brooklyn Heights –
What a crazy pair!
But they’re cousins,
Identical cousins all the way.
One pair of matching bookends,
Different as night and day.
Where Cathy adores a minuet,
The Ballet Russes, and crepe suzette,
Our Patty loves to rock and roll,
A hot dog makes her lose control –
What a wild duet!
Still, they’re cousins,
Identical cousins and you’ll find,
They laugh alike, they walk alike,
At times they even talk alike –
You can lose your mind,
When cousins are two of a kind.
Note: On the 1999 TV reunion movie The Patty Duke Show: Still Rockin’ In Brooklyn Heights, Cathy is a widow living in Scotland and has a teenage son, Liam McAllister (Kent Riley).
See also – “The Patty Duke Show” – Intro @ You Tube