Tributes are flooding in for Robert Carradine … and his “Lizzie McGuire” TV wife Hallie Todd is remembering him as family, not just a costar.

Hallie shared a heartbreaking IG photo of them together and revealed their bond went way beyond set life … saying over 25 years their families became inseparable … celebrating birthdays, graduations, Halloweens and Thanksgivings side by side.

Hallie called him brave, strong, kind, with a wicked sense of humor — adding Robert and his family were “probably my most treasured personal gift” from working on “Lizzie McGuire.”

She wasn’t alone — Jamie Lee Curtis also posted an emotional tribute, recalling how they met on set and how she later bonded with Robert’s real-life daughter, Ever, who’s now an actress herself … she also posted a tribute to her father.

The loss is a heavy one. Robert — also known for “Revenge of the Nerds” and “The Long Riders” — died at 71 after taking his own life following a nearly two-decade battle with bipolar disorder.