Morgan, a New York City native, was returning from a standup performance at Dover Downs Hotel & Casino in Delaware when the crash occurred. In all, six vehicles were involved in the pileup, but no one from the other cars was injured.
At a press event Saturday in Los Angeles to promote the upcoming comedy film "Think Like A Man Too," cast members, many of whom have worked and are friends with Morgan, wished him well.
Kevin Hart said he owes much of his success to Morgan, crediting him for paving the way for comics like himself to become successful.
"We just want him to get better and to get back to everyone that loves him and get back to doing what he does best, making people laugh," Hart said.
Fuqua's mother, Doris, said she visited him in the hospital Saturday. The writer-comedian had toured with Morgan for nearly a year, she said, and had opened for him Friday night.
"We're hoping for the best," Doris Fuqua said Sunday, adding that she didn't know how long he may be hospitalized. "It's too early to tell."
McNair, 62, of Peekskill, New York, was a close friend and mentor to Morgan, Morgan's ex-wife, Sabina Morgan, told the New York Daily News. "He was one of the first comedians that took Tracy under his wing," she said. "They were very close."
Royale Watkins, a Los Angeles-based comedian who said he had performed in New York clubs with Morgan and McNair, described McNair as having a big personality.
"There may be guys like Tracy who get the fame and notoriety, but you have people like Jimmy Mack who have kind of energized and fueled cats like Tracy and kept them going on the road," Watkins said.
Associated Press writers Bob Lentz and Josh Cornfield in Philadelphia, Marcela Isaza in Los Angeles and Julie Walker in New York contributed to this report.