Watching Jeri Ryan play a shark expert on Psych! right now. If already said, oh well…
TNG’s Gina Hecht as “Dr Dana Foley” on Seinfeld:
I just saw the TOS episode Assignment: Earth the other day. Everybody recognizes Teri Garr, of course, but one of the two police officers who responds to her phone call was very familiar. It was Ted Gehring who did a lot of TV roles in the '70s and '80s. I remembered him from an episode of The Rockford Files. He was a friend of Rocky’s who passed some trucking manifests to hijackers; the bad guys were trying to kill Rocky because they thought he knew too much.
And speaking of Teri Garr in that episode, when she accidentally opened the secret door in Gary Seven’s office, am I the only one who said “put, ze candle, back!”?
Ted Gehrig was in last night’s ***Columbo ***episode “Publish or Perish,” along with Mariette “Zarabeth” Hartley.
Lou “Half-White Lokai” Antonio (“Let that Be Your Last Battlefield”) was in this afternoon’s ***Monkees ***episode “Hillbilly Honeymoon” along with F-Troop’s Melody Patterson.
Melody Patterson, mmmmmmmmmmmmmmmmm! :o
Reiterating Quantum Leap:
“A Leap for Lisa” Season 4 episode 22 had many:
Scott Bakula (Captain Jonathan Archer, Enterprise)
Terry Farrell (Dax, DS9)
Charles Rocket (ST: VOY, “The Disease”) played Commander Riker in this episode.
Paul Carr, Lt. Kelso in Where No Man Has Gone Before, according to Wikipedia “giving him the dubious honor of being the first supporting character to be killed in Star Trek history” as the brother of a guy Shenandoah may have killed in the Civil War on A Man Called Shenandoah. He gives the dirty Yankee no information that would help Shenandoah’s amnesia.
Ken Lynch, head mining engineer in The Devil in the Dark, played a farmer or rancher in A Man Called Shenandoah.
Bill Quinn again, this time as Bob’s colleague “Dr Wyler” on The Bob Newhart Show.
James B Sikking ("Excelsior Captain Styles") as an Army paymaster in the “Captain Tuttle” episode of MASH*.
I was watching the MTM episode this morning where Mary’s parents make their first appearance, and caught something new. Do you know what Dr. Richards calls his daughter? Bones!
That’s a strange thing to call someone diagnosed as having type 1 diabetes. 
Leonard Nimoy plays the son of the Basque tough guy Ernest Borgnine in the Wagon Train episode, “The Esteban Zamora Story”.
Unfortunately, this episode was not written by Gene Roddenberry.
Bill Quinn was Bob Newhart’s father-in-law in real life.
Bill was also a regular on “Archie Bunker’s Place”, playing the blind Mr. Van Ranseleer.
This was 1972. Was MTM known to be diabetic that early? I think they had Mary Richards’ dad call her that just because she was skinny.
Bill Quinn really seems to have got all around TV during the '60s and '70s, mostly cast as doctors.
William Schallert was in everything but the most bizarre casting him was as a Chinese man Chee Yan in the “Have Gun Will Travel” episode “Lady of the Fifth Moon” in season 6 when the series was almost over.
Mariette Hartley made her film debut in “Ride the High Country” which was Randolph Scott’s last movie.
I was channel surfing once a few years ago and I came across some show in black-and-white; might have been The Twilight Zone. There were two men on screen, looking toward the camera. My thoughts went as follows…
She was diagnosed with diabetes when she was 33, which would be in 1969. According to some sources, she tried to keep it secret, but I remember hearing about it around the same time.
Diabetes was why she was so skinny, much thinner than she’d been on Dick van Dyke.
Paul Carr, Lt. Kelso in Where No Man Has Gone Before, in Have Gun, Will Travel.
A sort of Romeo and Juliet episode, as Paladin remarks in the same episode, “to paraphrase Shakespeare”.
One of those, I know that guy, but from where?
I saw Paul Carr in the Shenandoah episode Obion-1866 today.