United Kingdom, July 10 -- Melissa Gilbert's biological father recognised her from TV when he first met her.

The 61-year-old actress was adopted immediately after birth, and by the time she was reunited with her dad, she had achieved fame through her role as Laura Ingalls Wilder on Little House on the Prairie.

Speaking on the Patrick Labyorteaux podcast, she said: "I didn't tell him who I was, and then he asked me, 'Well, who are you? What do you do?'

"And I said, 'Well, here's the thing.' And I said, 'Did you ever watch Little House on the Prairie?' And he said, 'You're Laura, aren't you? I knew it.' He knew it.

"When I met my half-siblings, we all look alike. So, you could definitely see it. So, it's pretty clear."

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