In addition, Broncos wide receiver Brandon Marshall, coming off of a team-imposed nine-day suspension, was in uniform and would play against the Bengals.
Denver wide receiver Jabar Gaffney also was active despite a thumb injury.
Gaffney had been limited in practice last week, leaving his status uncertain.
Guard Chris Kuper was inactive with an ankle injury.
Orton, who has a dislocated right index finger, was wearing a glove on his throwing hand at practice last week but he'd rather do without it on game day. He said he's never worn a glove, even in the winter while he was playing for the Chicago Bears.
Orton's knuckle poked through the skin when he was hurt in the Broncos' third preseason game against Chicago on Aug. 30.
Coach Josh McDaniels suspended Marshall after the receiver's insubordinate antics during practice -- he swatted a pass away that he was supposed to catch and walked while the rest of the team ran.
But McDaniels said Friday he had no complaints since the return of Marshall, who has clashed with the organization off and on since the team rebuffed his overtures for a new contract.
Information from The Associated Press was used in this report.