Robert Downey Jr.'s pretty intense at the best of times! So when Jimmy Fallon asked him to star in an "Intense Staredown" sketch on Wednesday Oct. 8’s The Tonight Show, the The Judge star was in his element.

Donning a long wig and traditional black robes, Downey Jr. and Fallon perched on animal skins, and looked (intensely!) at each other from their vantage point on top of a mountain.

Taking intense to a new level, Downey Jr. contorted his face in a series of hilariously bizarre expressions as he gave his deep and meaningful commentary about everything from world peace, Domino's stuffed crust pizza and sneezing!

Determined not to be outdone, Fallon looked similarly serious about his list of infinitely wise quotes, the oddest of which were the tales from the hairs on his body.

After the sketch, Downey Jr., who is expecting his second child with wife Susan Downey, revealed to Fallon he has high aspirations for his unborn baby, who will be his first daughter.

"Our daughter will probably be an actress,” he said, before adding ironically, "that’s a stable career."

Watch Downey Jr. and Fallon ponder the mysteries of the universe in the clip above.