Suzanne Somers' “Step by Step” Costars Set to Reunite at 90s Con for the First Time Since Her Death (Exclusive)

Patrick Duffy, Staci Keanan, Angela Watson, Christine Lakin, Christopher Castile, Jason Marsden and Sasha Mitchell are confirmed to attend the convention in March

The Step by Step cast is coming together for a bittersweet reunion.

PEOPLE can exclusively reveal that the cast is set to appear together at 90s Con in March. Patrick Duffy, Staci Keanan, Angela Watson, Christine Lakin, Christopher Castile, Jason Marsden and Sasha Mitchell are all confirmed to participate.

This will be the first cast reunion since Suzanne Somers died on Oct. 15, one day shy of her 77th birthday, from breast cancer.

Related: Suzanne Somers Sang at Her Own Memorial: Watch Clips from Emotional Gathering of Actress' Loved Ones (Exclusive)

Following Somers' death, tributes from several of her Step by Step costars poured in. Duffy, who played Somers' on-screen husband Frank Lambert, sent PEOPLE a statement at the time: “As with everyone who knew her, I was stunned yesterday by the news that my dear and deep friend Suzanne had passed."

“I am not alone in wishing I had one more face-to-face with her and [her husband] Alan, but had we had that meeting last Friday I would still be yearning for just one more today," Duffy, 74, added. "It is the painful beauty of our present human reality. What strength and support I can muster I send to Alan and [her son] Bruce and her family and to her I say; When the stone of your life dropped in this pond you made quite a ripple my friend. Thank you.”

Related: Suzanne Somers' Husband Reveals Why She Was Laid to Rest Wearing Timberland Boots

Keanan, 48, who played eldest child Dana Foster on the family comedy, described Somers as a "bright, buoyant spirit, very kind, funny, and generous of heart."

"She was universally adored on the set of Step by Step, and when anyone asked what it was like to work with her, I found myself saying often that to know her was to love her," she told PEOPLE in a statement. "Along with her many creative gifts, Suzanne was also a brilliant business person. As her 'TV daughter,' she was so warm and nurturing towards me. I thought she was just flawless. I will miss her, but was just lucky to have known her."

Related: Suzanne Somers' Widower Recalls Kissing and 'Talking to Her' in Her Final Days: 'She Was Still with Us' (Exclusive)

90s Con organizer That's 4 Entertainment previously announced a number of guests for this year's fan convention, including Geena Davis, Susan Sarandon, Alyssa Milano, Danielle Fishel, Rider Strong and Jodi Benson.

While Step by Step aired from 1991 to 1998 for seven seasons, first on ABC followed by CBS, several of the show's cast members have kept in touch, with Keanan, Duffy and Lakin, 44, getting together in 2018.

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90s Con is set to take place March 15–17 at the Connecticut Convention Center. More information can be found here.

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