The former Office star sported a short salt-and-pepper beard and made the odd choice of combining a brown suit with a black shirt and an even stranger black tie featuring tonal stripes.
He was joined on the red carpet by Charly Clive, who plays his daughter. She wore a charcoal miniskirt and a matching sport coat with a white button-up blouse and dark heels.
Connie Britton added some color to the proceedings with a dark purple top featuring voluminous sleeves, along with matching slacks and brown-suede boots.
Natasha Bedingfield looked cool and casual in a fuzzy black jacket with baggy black striped pants and clunky black platform boots.
Danielle Deadwyler, who is featured in the series, looked glamorous in a sleeveless black dress with a long train and pointy black heels.
Scrubs star Zach Braff blended casual and dress styles with a lustrous dark blue suit contrasted with a blue-and-white striped shirt and weathered sneakers.
Ted Lasso star Brett Goldstein fit the autumnal backdrop with a thigh-length black coat, a gray sweatshirt and black jeans with matching boots.
He posed with the comedian Jamie Lee, who stayed cozy in a black sweater with satin midnight blue slacks.
Steve Carrell, who stars in Rooster, sported a short salt-and-pepper beard and made the odd choice of combining a brown suit with a black shirt and an even stranger black tie featuring tonal stripes
He was joined on the red carpet by Charly Clive, who plays his daughter. She wore a charcoal miniskirt and matching sport coat with a white button-up blouse and dark heels
Connie Britton added some color to the proceedings with a dark purple top featuring voluminous sleeves, along with matching slacks and brown-suede boots
Natasha Bedingfield looked cool and casual in a fuzzy black jacket with baggy black striped pants and clunky black platform boots
Danielle Deadwyler, who is featured in the series, looked glamorous in a sleeveless black dress with a long train and pointy black heels
Scrubs star Zach Braff blended casual and dress styles with a lustrous dark blue suit contrasted with a blue-and-white striped shirt and weathered sneakers
Ted Lasso star Brett Goldstein fit the autumnal backdrop with a thigh-length black coat, a gray sweatshirt and black jeans with matching boots. He posed with the comedian Jamie Lee, who stayed cozy in a black sweater with satin midnight blue slacks
Carla Gugino showcased her stellar figure in a skintight semi-sheer black top, which she contrasted with baggy black slacks and thick boots.
Maria Bello glowed in a brilliant white jacket and matching top, which she contrasted with pleated black slacks and matching boots.
Righteous Gemstones actor Scott MacArthur arrived in a thin black coat with a gray button-up shirt, dark jeans and brown Chelsea boots.
Tate Moore stunned in a black leather off-the-shoulder minidress and dark heels.
The comedian Robby Hoffman stood out on the red carpet in a key lime green shirt with dark pants and square-toed black leather shoes.
Her fellow comedian and actor Rory Scovel sported a tasteful gray plaid overcoat with a royal blue sweater, black pinstripe trousers and black leather shoes.
Scrubs star John C. McGinley showed off an infectious smile while wearing a black suit and gray tie, as well as oddly casual black loafers.
Broadway veteran Lena Hall kept her look simple with a brown sleeveless spaghetti-strap dress.
Carla Gugino showcased her stellar figure in a skintight semi-sheer black top, which she contrasted with baggy black slacks and thick boots
Maria Bello glowed in a brilliant white jacket and matching top, which she contrasted with pleated black slacks and matching boots
Righteous Gemstones actor Scott MacArthur arrived in a thin black coat with a gray button-sup shirt, dark jeans and brown Chelsea boots
Tate Moore stunned in a black leather off-the-shoulder minidress and dark heels
The comedian Robby Hoffman stood out on the red carpet in a key lime green shirt with dark pants and square-toed black leather shoes
Her fellow comedian and actor Rory Scovel sported a tasteful gray plaid overcoat with a royal blue sweater, black pinstripe trousers and black leather shoes
Scrubs star John C. McGinley showed off an infectious smile while wearing a black suit and gray tie, as well as oddly casual black loafers
Broadway veteran Lena Hall kept her look simple with a brown sleeveless spaghetti-strap dress
Succession star Alan Ruck looked snazzy in a mottled gray three-piece suit and brown brogued wingtip derby shoes
Former R.E.M. frontman Michael Stipe was layered up with a gray denim jacket and white jeans, with a yellow plaid shirt and matching yellow moccasins to add some color. He completed the look with a black cashmere jacket draped over his shoulders, and he covered up with a red beanie
Tennis icon John McEnroe was joined at the premiere by his younger brother Patrick McEnroe and Patrick's wife, the singer and actress Melissa Errico. John wore a gray double-breasted overcoat with a teal shirt, black jeans and sneakers, while Patrick wore a blue blazer and jeans and Melissa rocked a patterned black velvet dress
American Horror Story actor Denis O'Hare wore an autumnal striped sweater with an olive-colored corduroy sport coat, beige trousers and gray suede shoes with bright yellow soles
Scrubs creator Bill Lawrence, who co-created Rooster, wore a blue plaid suit and dark tie
Rooster debuts on HBO and HBO Max on Sunday, March 8
Succession star Alan Ruck looked snazzy in a mottled gray three-piece suit and brown brogued wingtip derby shoes.
Former R.E.M. frontman Michael Stipe was layered up with a gray denim jacket and white jeans, with a yellow plaid shirt and matching yellow moccasins to add some color. He completed the look with a black cashmere jacket draped over his shoulders, and he covered up with a red beanie.
Tennis icon John McEnroe was joined at the premiere by his younger brother Patrick McEnroe and Patrick's wife, the singer and actress Melissa Errico.
John wore a gray double-breasted overcoat with a teal shirt, black jeans and sneakers, while Patrick wore a blue blazer and jeans and Melissa rocked a patterned black velvet dress.
American Horror Story actor Denis O'Hare wore an autumnal striped sweater with an olive-colored corduroy sport coat, beige trousers and gray suede shoes with bright yellow soles.
Scrubs creator Bill Lawrence, who co-created Rooster, wore a blue plaid suit and dark tie.
Rooster debuts on HBO and HBO Max on Sunday, March 8.
