Who were the cast in 1973 movie sunshine about a woman dying of cancer?

The 1973 movie "Sunshine" did not center حول the theme of a young cancer-stricken wife. However, there was a drama named "Love Story" released that same year with similar plot that revolved around a young couple dealing with the wife's fatal illness:

Lead Actors:

- Ali MacGraw as Jennifer Cavalleri

- Ryan O'Neal as Oliver Barrett IV

Supporting Cast:

- Ray Milland as Oliver Barrett III (Oliver's father)

- Russell Nype as Phil Cavalleri (Jennifer's father)

-Katharine Balfour as Anne (Jenny's best friend)

- John Marley as Phil Cavalleri

-Tommy Lee Jones as Phil Cavalleri, Jr.