Franklin played opposite William Holden and Trevor Howard in the British film The Lion (1962) and co-starred with Luke Halpin in Flipper's New Adventure (1963) as a wealthy industrialist's daughter.

[citation needed] Not long afterwards, Franklin played opposite Marlon Brando and Rita Moreno in The Night of the Following Day (1969) as the kidnap victim in the crime thriller.

The episode was a backdoor pilot for the proposed sitcom titled Pam, which would have featured Franklin and Don Porter as a father and daughter operating the Moana Rexford hotel in Hawaii.

As an adult, Franklin became somewhat typecast in horror films after her performances in the popular occult thrillers Necromancy (1972)[5] and The Legend of Hell House (1973)[6] opposite Roddy McDowall.

Her last film role was in The Food of the Gods (1976), although she made television appearances until 1981, including an episode of Police Story, in which she became physically ill playing a rape victim.

[citation needed] Franklin made other television appearances, including Green Acres, Cannon, The Love Boat, Fantasy Island, The Six Million Dollar Man, Hawaii Five-O, Barnaby Jones, Vega$, and Trapper John, M.D.. She played the title character in "Jenny Wilde is Drowning", an episode of The Name of the Game, starring Tony Franciosa.