Well, there are many actors from that movie. Here is a list showing all of them: http://www.imdb.com/title/tt0120616/fullcredits?ref_=tt_cl_sm#cast
Brendon Fraser
If this is the movie I'm thinking of then its Brendan Fraser
Boris Karloff remodeled his costume after Rameses III for the original 1932 movie The Mummy.
Christopher Lee played the mummy Kharis in the 1959 version of "the Mummy"
The mummy + the mummy returns strangly not mummy 3
a cat
Brendan Fraser
Jake Arnott
The possessive form of the noun "mummy" is "mummy's."
No.
No. The beetles that goes inside people in the movie "the mummy" are not real.
Boris Karloff
Phillip A. Gillis played the priest in the movie, and Liam Neeson played the original Darkman. However in the sequels, Darkman was played by Arnold Vosloo, as you know from the Mummy trilogy.