#10: Tensions on Set
In a 2013 interview, Ed O’Neill revealed that Amanda Bearse (Marcy D’Arcy) was the only cast member he didn’t get along with. Tension reportedly began in season three, when O’Neill felt Bearse became “more masculine” and “snarky” toward him.

He supported her decision to come out in 1993 but was surprised when she didn’t invite him or David Faustino to her 2010 wedding. Bearse allegedly feared they’d mock “two women in tuxedos.” O’Neill later admitted that he probably would have—adding another layer to their long-standing friction.