- Younger brother of Harry Krofft and older brother of producer Marty Krofft.
- He and Marty Krofft were awarded a Star on the Hollywood Walk of Fame for Television at 6201 Hollywood Boulevard in Hollywood, California.
- Krofft's first filmgoing experience was The Wizard of Oz (1939). A neighbor sneaked him into a premiere screening at the Majestic Theater in Providence, Rhode Island on August 13, 1939. He later toured as the opening act for Judy Garland, and his fame exploded in 1969 with the creation of the television series H.R. Pufnstuf (1969), which he freely admits was influenced by the movie.
- He and Marty Krofft were awarded the Lifetime Career Award at the 2003 Saturn Awards for being the creative minds behind some of the most imaginative and beloved fantasy shows on television.
- In 2020, Mr. Krofft began hosting "Sundays with Sid", a live show on his Instagram account in which he reminisced about his long life and diverse career.
- Krofft used to drive a custom Dodge van that said "L.A. Snake Farm" on the sides. On the dashboard was a sign declaring "Danger: Poisonous Snakes!", and as he was disengaging the vehicle, he would turn on a cassette of hissing serpents. No one ever messed with the van, but he was frequently questioned about the snake farm.
- Parents are: Peter Krofft, and Mary Yolas.
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