Born in England, Veronica is the older sister of popular television child actress Angela Cartwright. In her early career, she was cast in a number of popular films such as The Children's Hour, Spencer's Mountain and Alfred Hitchcock's The Birds. As such, she was cast as "Jemima Boone" in the popular television series Daniel Boone, which ran from 1964-66. Her career after "Boone" may have been influenced by Hitchcock as she appeared in both the remake of Invasion of the Body Snatchers and the horror classic Alien. On television, she appeared twice as Lumpy's younger sister, "Violet Rutherford" and once as "Peggy MacIntosh" on Leave It to Beaver and had a small role in the television movie Still the Beaver.

She also appeared in Robert Kennedy & His Times, Tanner '88 and had a recurring role on L.A. Law. Her big screen features included The Right Stuff, Flight of the Navigator and The Witches of Eastwick. Veronica worked on the stage in "Electra", "Talley's Folly", "Homesteaders", "Butterflies are Free" and "The Triplet Connection". Alternating between television and big screen movies in the 90s, she appeared in such films as Hitler's Daughter and Candyman: Farewell to the Flesh.
Sister of Angela Cartwright Played in Hitler's Daughter and was born on Hitler's birthday (April 20). Has a son, Dakota Her character on Leave It to Beaver gave Beaver Cleaver his first kiss. Aunt of actors Jesse Gullion and Rebecca Gullion. Sister-in-law of Steve Gullion.