Claire Patricia Grogan, known professionally as Clare Grogan or sometimes as C. P. Grogan, is a Scottish actress and singer. She is best known as the lead singer of the 1980s new wave music group Altered Images, as well as for supporting roles in the 1981 film Gregory's Girl and the science fiction sitcom Red Dwarf as the first incarnation of Kristine Kochanski.

Altered Images are a Scottish new wave/post-punk band who found success in the early 1980s. Fronted by singer Clare Grogan, the group branched into mainstream pop music, having six UK top-40 hit singles and three top-30 albums from 1981 to 1983. Their hits include "Happy Birthday", "I Could Be Happy", "See Those Eyes", and "Don't Talk to Me About Love".