Inside the Feud Between Ben Stiller and Joan Rivers

"I feel bad that we never got to work that out," Stiller said.

The "Zoolander" actor, 49, appeared on Howard Stern's radio show earlier this week and Stern wanted to get to the bottom of their apparent feud.

"She thought you didn't like her," Stern said.

"I never had an interaction with her," Stiller said.

"She was really ticked that you wouldn't say 'hello' to her" considering her connection to Stiller's parents, Stern said.

"I don't remember that happening but I'm sure it did," Stiller said. "Then I heard there was a documentary or something, and they said, 'What do you think of Ben Stiller?' [Rivers said], 'Lucky.' ... Then, the beef started."

He added, "She was great. I feel bad that we never got to work that out. ... My parents were really friends with her and spent a lot of time and worked together with her, and she had an amazing career. ... But you've help me heal a little."

Stiller said he also wanted to send "good energy to Joan and Joan's family."