O'Donnell said she's flattered, but she is not sure if she will accept.
She said her initial reaction was to turn it down, but others are encouraging her to go for it.
The conservative Republican, who lost to a Democrat amid controversy over past statements about youthful dabbling in witchcraft, is soliciting opinions on her Facebook page.
A representative for the show would not comment on the casting speculation but did say the new cast will be announced next week.
The Associated Press contributed to this report.