Mark Gordon Jansen was a HouseGuest on Big Brother 19 (US).

Mark is mostly known for his showmance with Elena Davies known as "Marlena," for being a physical threat, and being emotional. His association with his friends Cody Nickson and Jessica Graf made him a target, and he was accused of flip flopping by the other houseguests. He also clashed with Josh Martinez, by throwing pickle juice and hot sauce in Josh's face. He almost got physical when Josh banged pots and pans in his face. Mark tried to convince his friend Jason Dent to make a move against Paul Abrahamian, but was unsuccessful and Elena was evicted during the Double Eviction with Jason as the HOH. Mark won safety four weeks in a row by winning either a Power of Veto or Temptation Competition, but was unable to save himself during week 8, when he was evicted and became the third member of the jury. Despite his confrontations with Josh, Mark's distaste towards Paul's constant lying and orchestrating bullying tactics, caused him to be one of the five votes for Josh to win, along with Elena, Cody, Jason, and Alex Ow.


Mark Jansen Biography

Retrieved from [1]
Age: 26
Hometown: Grand Island, NY
Current City: Grand Island, NY
Occupation: Personal Trainer
Three Adjectives: Fun, strong and thoughtful
Favorite Activities: Lifting weights, hiking, watching movies and relaxing on a beach. What do you think will be the most difficult part about living inside the Big Brother house? Seeing the same people every day, but I've been through a similar experience studying abroad.
Which past Big Brother cast member did you like most:
Brendon Villegas from Seasons 12 and 13. He basically said, "It's me and my girl vs. the house. Let's go."
Do you have a strategy for winning the game?
Yeah, try to read people and relate with everybody, be real, don't get caught up in stories, earn people's trust and keep it.
My life's motto is… Fear none, regret less.
What would you take into the house, and why?
- A pair of Jordan's because I'm a sneaker head
- Protein because you can never have too much protein
- iPod because I love my music
Fun facts about yourself:>br> - Studied abroad
- Bodybuilder
- I love chess and I'm real good
- Went to an NFL regional combine
- Division 1 football player

Player History - Big Brother 19

Competition History

Week 1 Temptation Loss
Hit The Road Ineligible
HOH Part 1 Win
HOH Part 2 Sat Out
POV Not Picked
Week 2 HOH Loss
POV Not Picked
Week 3 HOH Loss
POV Not Picked
Week 4 House Challenge Not Picked
HOH Loss
POV Not Picked
Week 5 HOH Loss
Temptation Win
POV Not Picked
Week 6 HOH Loss
Temptation Survived
Week 7 HOH Loss
Temptation Win
POV Loss
HOH Loss
Week 8 HOH Loss
POV Loss

Have/Have-Not History

Week 1 Have
Week 2 Have
Week 3 Have-Not
Week 4 Have-Not
Week 5 Have-Not Extension
Week 6 Have
Week 7 Have-Not Escape
Week 8 Have-Not

Den of Temptation History

Week 1 Loss
Week 2 Loss
Week 3 Loss
Week 4 Den of Temptation Phase Over
Week 5
Week 6
Week 7
Week 8

Voting History

Week Position Voted for With Majority?
1 Friendship Immunity Jillian Parker No
Jillian Parker Yes
2 Cody Nickson Yes
3 Dominique Cooper Yes
4 House Challenger Paul Abrahamian Yes
Josh Martinez No
5 Temptation Immunity
6 Used POV on Self Jessica Graf Yes
7 Temptation Immunity Cody Nickson Yes
Used POV on Self Matthew Clines No
8 Post-POV Nominee
Finale Jury Member Josh Martinez Yes

Post Big Brother

  • Mark attended the wedding of Cody Nickson and Jessica Graf in October 2018.[2]
  • On March 5, 2019, Mark revealed that he and Elena have since ended their relationship.[3]


Mark's Cast Photo for Ex on the Beach 3 (US)


  • Mark is the first HouseGuest to win immunity through the Temptation Competition.
    • He is also the only HouseGuest to win twice. Ironically he was nominated the week after his safety was up both times, however he also won the Veto and saved himself both times.
    • He is also the only HouseGuest to take an apple from the Tree of Temptation.
  • Mark is tied with fellow HouseGuest Josh Martinez, BB11 houseguest Michele Noonan, BB15 houseguests Helen Kim and Elissa Slater, BB18 houseguest Corey Brooks, and BB20 houseguest Scottie Salton for the most weeks spent as a Have-Not in a single season with four.
    • However, his 4th time being a Have-Not was cancelled due to winning the Have-Not Escape, so his 5th time counts as his 4th week.
  • Whenever Mark won veto, he used it on himself.
  • Mark is the second person to be evicted by a vote of 4 to 2, following Dustin Erikstrup.


Big Brother 19 (US) Houseguests
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