The donation comes in response to criticism over a gender pay gap for re-shoots of the movie "All the Money in the World". Wahlberg was paid $1.5 million for the re-shoot while Williams made just around $1,000, or $80 a day, reports cnn.com.
"Over the last few days my re-shoot fee for 'All the Money in the World' has become an important topic of conversation," Wahlberg said in a statement.
William Morris Endeavor Entertainment (WME), the talent agency that represents both Wahlberg and Williams, also announced it would make a $500,000 donation to the fund, again in Williams' name. The organisation had donated $1 million to the fund earlier this month.
Williams issued a statement in response to the donation on Saturday, reports cnn.com.
"If we truly envision an equal world, it takes equal effort and sacrifice," her statement read in part.
"Today is one of the most indelible days of my life because of Mark Wahlberg, WME and a community of women and men who share in this accomplishment.
Anthony Rapp, for all the shoulders you stood on, now we stand on yours."
Spacey issued a statement claiming he did not recall the alleged incident with Rapp, but he apologised for what he said would have been "deeply inappropriate drunken behaviour".
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)