Let's talk about great one-off characters on fictional TV series with continuing casts

I was going to mention **Adam Goldberg’s **appearance on “Friends” as Chandler’s crazy roommate that moves in when Joey moves out. It looks like he had a 3-episode arc though, but if we can count Slow Donnie on “JSM” than we can certainly include Crazy Eddie.

Charles Durning as a Medal of Honor winner on NCIS.

And just about all of the guest stars on Ricky Gervais’s Extras. Most notably Patrick Stewart and Daniel Radcliffe.

Scorpio is great.

My favorite one-off on the Simpsons has to be the dentist though. “Why must you turn my office into a house of lies?”

Fran Drescher as Bobbi Fleckman in The Nanny (shall I explain?)

Rachel York as Randy Wolfe in Diagnosis Murder

Sarah Silverman in ST Voyager she’s just disqualified from Monk though IIRC she makes a tiny appearance in Mr Monk’s 100th case

Another Voyager one, that guy who always plays psychos* plays a psycho- who comes good in the end. (Should I put that in a spoiler? Nah)
*Brad Douriff

Oh, Crazy Eddie. He was hysterical. I love when he stuck a little goldfish cracker into the fish tank.

Phil Hartman on “3rd Rock From The Sun.” OH, YEAH!

ETA: Anf I can’t believe it took 86 posts to mention this, Phil’s last appearance.

Was he the guy trapped between the train and the tracks or something?

John Ritter’s appearance in first-season Buffy was pretty memorable, as the ultimate mom’s-bad-boyfriend.

Robin Williams on SVU

ETA: Tom Wolpat on Smallville, reuniting with John Schneider. Yeee-Haw!

[quote=“Wheelz, post:74, topic:549599”]

Oh wow…I guess I had forgotten that.

That sucks because I liked his first, not so much the second.
(I have such TINY FINGERS!!)

I have no idea who that is. I don’t think I’m the only one.

From my childhood-

Mask and Shokoti from the two-parter in the original He-Man show. Creepier than most of the other episodes and I liked Mask a lot-would have bought his action figure.

Pity Brendan Frasier from Scrubs is disqualified, he was so good.

It’s silly to count Saavik. She was not in command of anything; it was a training exercise, part of her academy training.

Tom Hanks on Family Ties. (Two part episodes count as one-off, and I don’t remember the drinking problem episode, so that doesn’t count either. )

Johnny, tell me what I’ve won.

Joan Sanderson as Mrs Richards in the Communication Problems episode of Fawlty Towers. The Wiki article on Sanderson says,

WKRP had a bunch of these, aside from the aforementioned Scum of the Earth. Little Ed the Preacher, Hoyt Axton, Jennifer’s perfect boyfriend “Steele,” Bobby Boogie, Del from Del’s Stereo and Sound, etc.

The cranky old deaf woman in a Fawlty Towers episode. “What?” “Que.” “K?” “Si.” “KC? Whatever are you talking about?”

Also, Lawrence Tierney as Elaine Benes’ father.

One I would add is Bill McLean as Harvey Moorhouse the Barber, Les Nesmann’s biological father.

Bill McLean is one of those actors you immediately recognize and “know,” and I always think of him from that ep.

Oh, and Angelique Pettyjohn from “Star Trek.”

Care to share?