Lisa Robin Kelly's Co-Stars React To Her Recent Arrest

INSIDE EDITION talks to one co-star of That 70's Show who feels badly about Lisa Robin Kelly's downfall.

It was Lisa Robin Kelly's finest hour, playing the ditzy blonde on That 70's Show. Now, the actor who played her dad is speaking out reacting to her arrest for domestic assault and the news that she's now living out of her car.

Kurtwood Smith played the grumpy dad on the hit show, but when it came to his daughter, he was real pushover.

INSIDE EDITION's Jim Moret asked Smith if he saw Kelly's recent mugshot.

"Yes. It's too bad. We all felt terrible about what happened to her," said Smith.

Kelly was fired from the show after three seasons because, she admits, she had a drinking problem. When Moret talked to her she had a message for her former castmates, who include Ashton Kutcher and Mila Kunis.

"I would want to say to them, 'I'm sorry for being unprofessional. I'm sorry for letting you down,' " said Kelly.

Smith told Moret, "She has no reason to apologize to me and to anybody else on the show. When she was there she was great to be around. Towards the end, you could tell she was having difficulties."

A That 70's Show TV reunion is planned for later this month and Smith says they'll all be thinking about Lisa Robin Kelly.

Smith said, "We're hoping for the best for her, that she does whatever she needs to do to get her life back in order."