Robert Downey Jr.: Hollywood's highest-paid actor

For Robert Downey Jr., it pays to be "Iron Man." Downey has been crowned Hollywood's highest-paid actor by Forbes magazine for the second year in a row, with an estimated haul of $75 million within the past year alone. Find out who else is playing in his league:

Dwayne "The Rock" Johnson is "Hercules" this summer, but he's been pretty busy lately, starring in no less than five films in 2013. For his hard work, Forbes estimates the wrestler-turned-actor earned around $52 million.

Bradley Cooper, center, has earned both the money and critical accolades over the past year. In 2013, he did another installment of the popular "Hangover" franchise (with Ed Helms, left, and Zach Galifianakis), but then he also took on the more acclaimed "American Hustle." Between June 2013 and June 2014, Cooper earned roughly $46 million, enough to debut on Forbes' list.

Leonardo DiCaprio still didn't win an Oscar in 2013, but he has enough money to go "The Wolf of Wall Street" if he wanted. Despite cutting his upfront fee to get "Wolf" made, DiCaprio earned an estimated $39 million over the past 12 months, Forbes reports. Here he plays the title role in "J. Edgar," the 2011 bio of the FBI chief.

Chris Hemsworth's reign as Thor comes with a princely sum. The Australian actor, here with co-star Natalie Portman, is in the top five of Forbes' highest-paid actors list this year, earning an estimated $37 million.

Liam Neeson is taking action movies such as "Taken" all the way to the bank. After releasing "Taken 2" in 2012, Neeson didn't act much in 2013 -- there were "Third Person" and "Khumba" -- but he still saw $36 million between June 2013 and June 2014. And "Taken 3"? It's lined up for 2015.

Ben Affleck splits his time in front of and behind the camera, but he can still command a pretty penny as an actor. Forbes estimates the Oscar winner (here in "Argo") made $35 million in the past year. He's now playing Batman in "Batman v. Superman: Dawn of Justice."

"The Dark Knight's" Christian Bale may have left hero work behind in 2013 in favor of riskier fare such as "Out of the Furnace" and "American Hustle," but he still made an estimated $35 million. To see more actors who made the cut, visit Forbes.com.

• Robert Downey Jr. earned an estimated $75 million, the same amount as he did last year


• Forbes magazine ranks him Hollywood's top earner once again


• Dwayne "The Rock" Johnson is second on this year's list


• Bradley Cooper ranks third, followed by Leonardo DiCaprio and Chris Hemsworth

(CNN) -- Robert Downey Jr. is once again the most highly paid actor in Hollywood, according to Forbes magazine.

The publication, which regularly ranks who's making top dollar, estimates that Downey earned roughly $75 million between June 2013 and June 2014, putting him at the top of its highest-paid actors list for the second year in a row.

Forbes calculated that Downey earned $75 million in 2013 as well.

Forbes says part of the reason for Downey's lucrative income is his "Iron Man" status. He's played the Marvel hero in three high-grossing, stand-alone features as well as in the 2012 blockbuster ensemble movie "The Avengers." Come 2015, he'll suit up as Iron Man again for the "Avengers" sequel, "Age of Ultron."

At this point, Forbes says that "it would be incredibly difficult for Marvel to continue making 'Iron Man' and 'Avengers' films without him."

Arriving in second place on Forbes' list is Dwayne "The Rock" Johnson. In 2013, the wrestler-turned-actor starred in five films, and Forbes estimates that the 42-year-old made $52 million between June 2013 and June 2014.

In third place is Bradley Cooper, whose $46 million should go nicely with the Oscar nods he's earned over the past two years.

Rounding out the top five is Leonardo DiCaprio, with an estimated $39 million, and Downey's "Avengers" co-star Chris Hemsworth -- aka "Thor" -- who made around $37 million over the past 12 months.

To compile its list of top-paid actors, Forbes speaks with producers, agents, lawyers and others close to the stars to get an estimate of earnings before taxes, agent fees and the other costs. To see the full list, visit Forbes.com.