Born and raised in Los Angeles, Karl Alexander was the son and nephew of screenwriters--his father, William Tunberg, wrote the screenplay for Old Yeller, and his uncle, Karl Tunberg, wrote the screenplay for Ben-Hur. Alexander's first novel Time After Time was published by in 1979. It was adapted as a successful 1979 film of the same title, as a musical in 2010, and as a television series in 2017. Jaclyn the Ripper, Alexander's sequel to Time After Time, was published in 2009.
Alexander died on March 30, 2015, in West Los Angeles.
