was born and raised in Los Angeles, and inherited the right genes to prepare her for a career as an actress. Her father was actor-comedian-impressionist, Bob Hopkins, and her mother was actress-singer-pianist Mavis Russell. The two of them met in 1948 while performing in the famous Ken Murray's Blackouts.
Katherine's first professional appearance on stage was as a dancer in a local nightclub production at the tender age of twelve. Three years later, she appeared in the Burbank Civic Light Opera Productions of Brigadoon, Anything Goes and Girl Crazy. At seventeen, she appeared in Noel Harrison's television special on NBC, in which she performed in several comedy sketches. Two years later, she began a long and successful association as the straight woman to the world famous Wiere Brothers, the zany stars of film, television, nightclubs and the concert stage.
While performing with the Wiere Brothers, she found time to do numerous commercials as well as many acting roles on television and in feature films. Among her television credits were roles on Charlie's Angels, Police Woman, Starsky and Hutch, The Bionic Woman, Barnaby Jones and Police Story plus appearances on The Tonight Show with Johnny Carson and on the syndicated Merv Griffin Show.
Her feature films included On the Brink with George C. Scott, The Capture of Big Foot and Shame Shame on the Bixby Boys. For almost four years she toured the country with Mickey Rooney and Ann Miller in the record breaking theatrical hit Sugar Babies.
Some of her theatrical productions included, a co-starring role in the Las Vegas Production of 42nd Street at the Sahara Hotel and in The LaMirada Production of Jake's Women.