In the movie "Bullitt" (1968), who played the two men in the Dodge Charger which was chased by Steve McQueen in a Ford Mustang?

According to this site it was John Aprea and Paul Genge. Loved that charger.

https://www.allmovie.com/movie/bullitt-v7534/cast-crew

John Aprea (the killer) and Bill Hickman (the driver).

Bill Hickman, seen as the baddie "Phil" who drives the Dodge Charger, actually did drive the Charger in the movie. The driving scenes netted him additional stunt work which included yet another classic car chase for The French Connection (1971). In 1973 he drove the Pontiac Bonneville as Bo in the chase of Roy Scheider's character Buddy driving the Pontiac Ventura Sprint coupe in The Seven-Ups (1973).

http://www.imdb.com/title/tt0062765/trivia

The two hit men in the Dodge Charger were played by Bill Hickman (a professional stunt car driver) and Paul Genge. Both of their characters were killed in a fiery car crash at the end of the chase. Steven McQueen in the Ford Mustang was the other participant in the car chase.

The movie is notable for the car chase throught the streets of San Francisco and is regarded as one of the most influencial in movie history.

Source: Wikipedia.org/wiki/Bullitt
https://en.wikipedia.org/wiki/Bullitt

Another link for Judysaverda:

"The gentleman in the car, playing Bill Hickman’s partner in crime, was actor Paul Genge…In the scenes in the Charger with Hickman, he was scared to death. After two or three time we almost had to bodily put tranqiulizers in him, and put him in the car. Mr. Hickman was one of the coolest drivers I’ve ever met." – from Bullitt -The Greatest Chase of All (Muscle Car Review, March 1987)

https://thebillhickmanstory.wordpress.com/the-films