Don Adams
Jack Burns
Bill Cosby
Bill Dana
Jeff Foxworthy
Redd Foxx
Jackie Gleason
Andy Griffith
Buddy Hackett
Pat Harrington
Don Knotts
Bob Newhart
Freddie Prinze
Don Rickles
Ray Romano
Phil Silvers

Ben Stiller
Kevin James
Tim Allen
Jerry Seinfeld
Michael Richards (probably shouldn't try it again)
Craig T. Nelson
Larry David
Harry Anderson
Not a "sitcom," but Denis Leary and Lenny Clarke from Rescue Me

Dave Coulier & Bob Saget

Roseanne
Bret Butler (Grace Under Fire)

ellen degeneres
drew carey (i think)
david spade (just shoot me, 8 simple rules)

drew carey (i think)

You are correct. Drew Carey was a standup comic for a few years before he started landing TV roles.

You are correct. Drew Carey was a standup comic for a few years before he started landing TV roles.

thank you TJL:)

Brent Butt and his wife Nancy (Brent and Wanda of Corner Gas)

Robin Williams.

I don't know how I forgot Robin, one of my favorite actors. (To be honest,
I never cared much, though, for his stand-up routines. Too raunchy for my
taste. Just my opinion.)

Kevin James

You forgot Chris Rock, Ray Romano, British actress Debra Stevenson and Emma Kennedy from Suburban Shootout

I mentioned Ray Romano in the original post.

Roseanne, Rodney Dangerfield (RIP), Jay Leno

Dave Chappelle
Martin Lawrence

Robin Williams.
:lol: What the hell is he wearing in that 3rd picture, that's scary. :lol:

Roseanne, Rodney Dangerfield (RIP), Jay Leno

Rodney Dangerfield and Jay Leno starred in sitcoms? When??

I mentioned Ray Romano in the original post.

D'OH, silly me. :stupid:

Rodney Dangerfield and Jay Leno starred in sitcoms? When??
Sorry I thought you meant comedians who became actors in general, I misunderstood. Sorry, my bad. :blush:

Paul Rodriguez-aka Pablo and Bill Engvall.

mark curry

Andy Kaufman (Taxi)
D.L. Hughley (The Hughleys)
Martin Lawrence (Martin)

Bernie Mac
Steve Harvey