‘Alice’ star Linda Lavin reacts to TV son Philip McKeon’s death: ‘He taught me how to be a good mom’

“Alice” actress Linda Lavin is heartbroken over the loss of her former costar, Philip McKeon.

The actor, best known for playing Tommy Hyatt in the series, passed away on Tuesday at age 55.

McKeon starred in “Alice" from 1976 until 1985 alongside Lavin. The show won eight Golden Globes, and was based on Martin Scorsese’s 1974 rom-com “Alice Doesn’t Live Here Anymore.”

“Philip was the endearing, loving boy, always willing and eager to connect with others,” Lavin, 83, told People magazine on Thursday.

PHILIP MCKEON, 'ALICE' CHILD STAR, DEAD AT 55

"Alice" cast from left to right: Polly Holliday as "Flo" Florence Jean Castleberry; Vic Tayback as diner owner Mel Sharples; Philip McKeon as Alice's son Tommy; Linda Lavin as Alice Hyatt; and Beth Howland as Vera Louise Gorman. January 1, 1979.

"Alice" cast from left to right: Polly Holliday as "Flo" Florence Jean Castleberry; Vic Tayback as diner owner Mel Sharples; Philip McKeon as Alice's son Tommy; Linda Lavin as Alice Hyatt; and Beth Howland as Vera Louise Gorman. January 1, 1979. (CBS via Getty Images)

RADIO HOST DELILAH SAYS SHE ‘WENT INTO A RAGE’ WHILE MOURNING THE DEATH OF HER TWO SONS

“Although we were performing a show, the dynamic of creating that relationship made our connection very real and deep,” she continued. “He taught me how to be a good mom, just by being the wondrous boy he was.”

Lavin starred as a widowed mother and aspiring actress who worked as a waitress in Phoenix while raising her son, played by McKeon. The show ran for nine seasons.

McKeon’s spokesman Jeff Ballard told the outlet McKeon passed away in Texas after a battle with a long illness.

“We are all beyond heartbroken and devastated over Phil’s passing,” said Ballard. “His wonderful sense of humor, kindness and loyalty will be remembered by all who crossed his path in life.”’

PATSY CLINE’S DAUGHTER REVEALS HOW SHE’S KEEPING LATE COUNTRY ICON’S LEGACY ALIVE

ELIZABETH TAYLOR’S ASSISTANT TALKS LATE STAR’S FINAL YEARS, WHY HER ESTATE IS AUCTIONING OFF PERSONAL ITEMS

McKeon is survived by his sister Nancy McKeon, who starred in "The Facts of Life."

After "Alice" ended, McKeon went on to star in a handful of other projects. His last on-screen appearance was 1994's "Ghoulies IV." He also directed a film and produced several others, including "Teresa's Tattoo," which starred his sister.

McKeon later worked in the news industry and hosted a radio show in Wimberley, Texas, close to his family.

Fox News’ Nate Day contributed to this report.