Arnold Schwarzenegger

Frequent movie line: "I'll be back."
Often has his character say comedic one-liners that punctuate the action
Many of his films have his characters doing feats of strength to match his muscular look, e.g. Commando (1985) where he is first seen in the film carrying a whole tree trunk on his shoulder.
Frequently has some type of action scene in bathrooms. (Terminator 3 - Le macchine ribelli (2003), True Lies (1994) and Un poliziotto alle elementari (1990).
Films often have a chase sequence or action scene in a shopping mall. (Commando (1985), Un poliziotto alle elementari (1990), Terminator 2 - Il giorno del giudizio (1991), True Lies (1994) and Una promessa è una promessa (1996)).

He saved a man's life while on vacation in Hawaii in 2004 by swimming into the sea to rescue him from drowning.
Refused to take the salary for Governor of California. Uses private jet at his own expense.
Childhood friends stated that he often said his goals in life were to move to America, become an actor, and marry a Kennedy. He accomplished all three.
Performed many of his own stunts in his films, owing largely to the fact that it was hard to find stunt doubles who matched his size. Billy D. Lucas, Joel Kramer and Peter Kent eventually became his personal stunt doubles and close friends.
His famous line "I'll be back", which originated from Terminator (1984), was originally written as "I'll come back".

I was always interested in proportion and perfection. When I was 15 I took off my clothes and looked in the mirror. When I stared at myself naked, I realized that to be perfectly proportioned I would need 20-inch arms to match the rest of me.
[Interview in "Starlog" magazine in 1991, explaining his reluctance to do sequels to most of his successful films from the '80s] There's so little time to do all the things I want to do that I can't see any reason to get bogged down in sequels.
Everything I have ever done in my life has always stayed. I've just added to it . . . but I will not change. Because when you are successful and you change, you are an idiot.
I know that if you leave dishes in the sink, they get sticky and hard to wash the next day.
I would rather be Governor of California than own Austria.