As the old Universal Pictures used to say: A Good Cast is worth Repeating:
Thelma Ritter:
"Go ahead, you'd be doin' me a favor." "Overtrumped. Don't send a baby to buy the beer." "Look at that crowd. Where I come from that's either a revival meetin' or a crap game."
Agnes Moorehead mentioned by DtM:
"I'm going to take your temperature - one way or the other."
Paul Lynde:
"I was married in satin." "I'm not having my daughter kissed by that.....that wiggler!" "I could tear my tongue out!"
So many others already mentioned...but I will add Florence Bates, Isobel Elsom, Mary Astor, Marsha Hunt, Ann Doran, Doris Dowling (natch) and Laura Hope Crews.
[I will omit Miss Allison Hayes who was mostly second leads].
Phil Carey, Whit Bissell, Dave Willock (apm), Strother Martin, John Fiedler, and Charles Meredith.