- Base-Breaking Character: Mearth. Some people like him because they think he's funny or cute, whereas some people dislike him because they think Mork laying an egg, Mearth looking like a man in his fifties, etc is too surreal even for a show like this, and/or they think Mork and Mindy should not have become a couple.
- Broken Base: Should the title characters have become a couple or not?
- Ensemble Dark Horse: Exidor, the only character who could steal a scene from Mork himself.
- Harsher in Hindsight:
- Perhaps the ultimate example of this trope comes from the episode "Mork Meets Robin Williams." Mork wants to find out what it's like to be famous and winds up meeting Robin himself (through the magic of post-production editing) backstage before a show. When he makes his final report to Orson at the end, he has a new perspective on fame, namely how harmful it can be to one's own health, and lists several celebrities who died before their time, such as Jimi Hendrix, Janis Joplin, and John Lennon (who had only died two months before). Just over a year later, Williams would be one of the last people to see John Belushi alive in bungalow 3 of the Chateau Marmont, where he would die of an overdose mere hours later. Doubly horrific after Robin himself would join that list as the result of suicide in 2014.
- In one of his appearances, Exidor goes on a long spiel extolling the virtues of O. J. Simpson.
- In "Mork vs. the Necrotons", it's off-handily mentioned by Captain Nirvana that the Necrotons could torture information out of Mork by wrapping a rope around his neck, among other means. Robin Williams died by suicide from hanging.
- At the end of "Mork in Wonderland: Part 2," Mork had only one wish upon reuniting with Mindy after her microworld counterpart, Mandy, died in his arms: for he himself to die before Mindy so he doesn't have to lose her twice. In a manner of speaking, Mork got his wish with Robin Williams dying in 2014 with Pam Dawber still around in good health.
- In "Mork's Mixed Emotions", Disgusted Mork overacts to a lack of food at a restaurant by trying to cut his wrist with a blunt knife. One of Williams' failed suicide attempts involved slit wrists.
- In "Old Fears", Mork ages himself so he can be a companion to Mindy's grandmother, joking that he stopped at "two years 'til senility". At the end of his life, Robin Williams suffered from the effects of Lewy body dementia, which drove him to suicide.
- He Really Can Act: From the first season on, Robin Williams stunned everyone at why he made the show so much more than a retread of My Favorite Martian. For instance, in "Mork's Mixed Emotions," one of the greatest TV episodes of all time, Robin effortlessly creates a myriad of simultaneous personas with absolutely no props, visual effects or makeup. All Robin needed was his singular acting ability to sell it perfectly.
- Heartwarming in Hindsight: Robin Williams and Pam Dawber got to work together again shortly before Williams' death, when she guest-starred on The Crazy Ones.
- Hilarious in Hindsight:
- This setting isn't the only one that involves an alien called Mork.
- As mentioned above, Mork aging in reverse and what it means for his relationship with Mindy.
- After he turns himself old to cheer up Cora, he invites her to go to a museum.
- Try watching "Mork's Health Hints" without thinking of Patch Adams.
- When Robin Williams "meets" Mork, the first thing he says is, "You know, you look a lot like....naw, he's a woman now." A few years later, and Robin gets a major success with Mrs. Doubtfire.
- In "Mork in Never Never Land", Mork becomes friends with a man who believes he's actually Peter Pan. Robin Williams would go on to play Peter Pan in Hook.
- Retroactive Recognition: David Letterman turns up in one episode as a fraudulent self-help guru.
- After the show ended Mr. Bickley apparently moved to Vermont and became a handyman at an inn.
- Morgan Fairchild, who later carved a successful niche playing Rich Bitch characters in '80s Prime Time Soaps such as Falcon Crest, played Susan (Mindy's ex-classmate and romantic rival) in season 1.
- Many actors who played minor characters had appearances on other shows in the '80s. A few examples: Jay Thomas later appeared as Eddie Lebeck on Cheers. Joe Regalbuto (a bad alien) went on to Murphy Brown. A very young Corey Feldman (Stand by Me, The Lost Boys) appears as one of Mork's day-care charges in a couple episodes. Dinah Manoff (Soap, Empty Nest) plays a woman who tries to extort Mork in the second season.
- John Larroquette & Richard Moll appeared in the episode "Alienation," as a cult leader/member respectively, several years before their more well known roles.
- Seasonal Rot: Despite the show being a hit in its first season, changes were implemented in season 2 as a bid for younger viewers. Several characters - including Mindy's father and grandmother - were dropped, Mork and Mindy getting together received greater emphasis, and episodes had an altogether different tone. Coupled with a new timeslot, ratings fell, which led to attempts at getting back to basics.
- True Meaning of Christmas: Mork gives the family bizarre, home-made Christmas presents, not realizing how impractical the presents are. When Susan Taylor insults them as she is leaving, Mork overhears, apologizes and tosses a "family present." When Fred, Cora and Mindy tell him "it was the thought that counts," he gives them the ability to remember their most favorite thought:
- Mindy:Remembers the feeling that she had when her dog Pepper returned, after thinking she'd been run over by a car.Cora:Remembers how she felt on the first Christmas with her husband, when they couldn't afford much, but bought a tree.Fred:Remembers the first time that he held his new-born daughter, in his large and clumsy hands.
YMMV / Mork & Mindy