Lisa Robin Kelly

Lisa Robin Kelly

Lisa Robin Kelly

Actress Lisa Robin Kelly, one of the stars of TV's "That '70s Show," Has died, according to her agent, Craig Wyckoff.

Kelly was 43, according to her biography on the Internet Movie Database.

"Lisa had voluntarily checked herself into a treatment facility early this week where she was battling the addiction problems that have plagued her these past few years," Wyckoff said.

"I spoke to her on Monday and she was hopeful and confident, looking forward to putting this part of her life behind her. (Wednesday) night she lost the battle," Wyckoff said. "Cause of death has not been issued yet and no death certificate has been issued either." Ref. CNN