By Adam B. Vary
Updated May 29, 2010 at 09:35 PM EDT

Even though they may not have worked with him, or known him directly, actor/director Dennis Hopper has clearly had an impact on many in Hollywood, judging by the tributes to him that have started streaming on Twitter. Here are some highlights.

“Dennis Hopper was born in Dodge City, and man, did he ever get out of Dodge… Dennis Hopper directed a screenplay written for Robert Mitchum, and it embodied the heart and soul of film noir.” —Roger Ebert

“TEXAS CHAINSAW MASSACRE 2, HOOSIERS, BLUE VELVET, RED ROCK WEST, EASY RIDER. Thanks for always making it seem simple & fun, Mr. Hopper. RIP.” —Kevin Smith

“Just heard we lost Dennis Hopper at 74. Great actor, sad loss. ‘Sometimes he goes too far. He’s the first one to admit it.’ Apocalypse Now” —Simon Pegg

“Rest In Peace Mister Dennis Hopper. I shall drink a Pabst Blue Ribbon in your honour.” —director Edgar Wright (Hot Fuzz, Shaun of the Dead)

“RIP Dennis Hopper. Man, I’m getting tired of typing those three letters…” —Michael McKean

“Dennis was the ultimate gentleman & bon vivant greatly loved in Las Vegas. In his last days he was embroiled in bitter ugly divorce battle… Will always remember from smoking our cigars at the Casa Fuente store in Forum Shops of Caesars Palace. We have lost 1 of the great ones!… One of my favorite photos of Dennis Hopper taken at CineVegas film festival by Scott Doctor.… My favorite Dennis Hopper photo as we enjoyed cigars at Casa Fuente in Forum Shops of Caesars Palace. Rest in Peac”Robin Leach

“Dennis Hopper RIP. A maverick, a wonderful actor. You always got something unexpected from him. He will be missed… Easy Rider, Blue Velvet, True Romance, Crash..some of the fine work and much more from Dennis Hopper. Thank you DH. RIP” —Marlee Matlin

“RIP Dennis Hopper.The world was your canvas & you captured it brilliantly.Thank u for the friendship u gave my dad&inspiration u gave us all” —Soleil Moon Frye

“You take the great ones for granted until they’re gone. RIP Dennis Hopper” —Slash

“RIP to another LEGEND Dennis Hopper a great actor, great director and a brilliant artist. Your work will live on as will ur spirit” —Marlon Wayans

“RIP Dennis Hopper – ‘Somewhere in my strange career, someone has liked something.'” —Tom Green

“Sweet Dennis Hopper. Bless you for your gifts you gave us all these years.” —Christina Applegate

“RIP Dennis Hopper. One of the great ones.” —Elizabeth Banks