William Louis Petersen  is  best known for playing Dr. Gilbert “Gil”
Grissom on the CBS-TV series CSI:Crime Scene Investigation. He
also starred in the first Hannibal lecter film, Manhunter in 1986.

William Petersen in Manhunter

Petersen played a secret service agent (above) in William Friedkin’s
1985 action film To Live and Die in L.A.

Tina Louise played the "movie star" Ginger Grant (above) on the CBS-TV sitcom
Gilligan’s Island (September 26, 1964 – September 4, 1867). Louise made her 
film debut in 1958 in God’s Little Acre. She became an in-demand leading lady
for major stars like Robert Taylor, Richard Widmark, and Robert Ryan. 

Tina Louise in God’s Little Acre