Mark Hardcastle

"It's the magic of the 4th stripe"

All opinions are my own (I neither represent nor speak for United).

[Mark Hardcastle @CaptainMarkDEN]

@realDaveFeldman Do you need more study subjects? I have very high LDL, but am very metabolically healthy - CAC of 0. Please see my DM on FB or IG for more details, and best ways to reach me. I rarely visit X but came here via your website. Thx!!

[Mark Hardcastle @CaptainMarkDEN]

Here's where you can get your own hard cover copy, signed by the author. Currently on sale at 35% off for a limited time, with limited copies available! https://t.co/2MHp5C1q46

[Mark Hardcastle @CaptainMarkDEN]

Here's where you can get your own hard cover copy, signed by the author: https://t.co/2MHp5C1q46

[Mark Hardcastle @CaptainMarkDEN]

@GuntherEagleman @SenateGOP @Kash_Patel @TulsiGabbard 👍

[Mark Hardcastle @CaptainMarkDEN]

@realTrumpNewsX 👍👍👍

[Mark Hardcastle @CaptainMarkDEN]

@CharlieKNews 👍👍👍👍👍

[Mark Hardcastle @CaptainMarkDEN]

Hey @HP your instant ink sent me a defective cartridge. I need another one ASAP. Can you help?

[Mark Hardcastle @CaptainMarkDEN]

Hp your instant ink sent me a defective cartridge. I used all your AI bots for help to no avail. Can you send me another cartridge? I'm dead in the water without my printer!

[Donald J. Trump @realDonaldTrump]

I am asking for everyone at the U.S. Capitol to remain peaceful. No violence! Remember, WE are the Party of Law & Order – respect the Law and our great men and women in Blue. Thank you!

[Mark Hardcastle @CaptainMarkDEN]

@opalapp I need customer service about a refund. Your AI has failed me, and gmail says your email address, [email protected], is not valid. Please give me a good way to connect with your support team. Thank you.

[Mark Hardcastle @CaptainMarkDEN]

@BerdSfo Thank you! I always enjoyed working with my SFO CS Reps!

[Mark Hardcastle @CaptainMarkDEN]

@united @Lindz5280 Thanks so much, @Lindz5280. I always enjoyed working with you!

[Mark Hardcastle @CaptainMarkDEN]

@opalapp I need customer service about a refund. Your AI has failed me, and gmail says your email address, [email protected], is not valid. Please give me a good way to connect with your support team. Thank you.

[United Airlines @united]

After 32 years in the air, United Captain Mark H. is hanging up his captain's hat after this one final flight. 👨🏼‍✈️

Happy World Pilots' Day to all our first officers and captains, like Mark, who inspire us... and all the future flyers out there!

[Mark Hardcastle @CaptainMarkDEN]

@solitarybrother @jonathangooda @united Sly, did you see your cameo in the video? Your infectious smile brought me a smile, as it always does! Such a great memory!

[Mark Hardcastle @CaptainMarkDEN]

Final Captain's Log, Chapter 4, the Last Chapter. "People will forget what you said, they'll forget what you did. But they'll never forget how you made them feel." - Maya Angelou. More to follow...

[Mark Hardcastle @CaptainMarkDEN]

@united @CUBuffsFootball @DeionSanders @united I flew the last one... Can I fly this one, too? I'll add "turn on the jets" to my preflight checklist. 👨‍✈️✈️😁

[Mark Hardcastle @CaptainMarkDEN]

@meducate @shawnapandya This is awesome!! 😳🤮🥴😁 Thanks Lawrence (@meducate)! @BethMund (https://t.co/NUMxcTbelh) have you seen this??

[Mark Hardcastle @CaptainMarkDEN]

@jonathangooda @UnitedDENSOC This seems like such a great idea! How can I learn more? @Cheryl_Searle should we chat? 🤔✈️👨🏼‍✈️

[Mark Hardcastle @CaptainMarkDEN]

@meducate @united @weareunited Congratulations 18 times over! #weareunited #beingunited