As of May 19, 2015, Aleks has the second-highest number of subscribers among the Cow Chop crew with over 1,000,000
He calls his subscribers Nobs, but also recognizes them as Homies because of his close connections with Sly, his best friend.
He had tags in every video that were vaguely relevant to it and told a funny little story, until YouTube made tags private on August 16, 2012.
Immortal has an alter ego named "Sniper Ghost Warrior" which he adopted from the video game, and uses in several videos with a deep voice resembling Batman's.
Aleks was chosen by Dexter Manning to be the new co-host on the Machinima series, "Sanity Not Included" replacing the character played by Lyle McDouchebag, who was fired from the show. Following this, "Dex" and Aleks continued to produce episodes of the show for two more seasons until its' finale episode in Season 5.
There was a running gag between the fans of Immortal and SSoHPKC due to Immortal killing Oscar out of pure reaction in the duo's first episode during their duel commentary of Dark Souls. The comments in nearly every episode referenced to Immortal killing Oscar.
This gag has spread to many other series.
He played as Marshal in the Street Ball episode of Head 2 Head and Supercast on a different channel.
Immortal had a guinea pig named Hank and tarantula named Spidarius, but Hank was given away when he moved to Colorado and Spidarius passed away.
Immortal regularly mentions on a regular basis that he is Russian. Incidentally, "Aleks" turned out to be a diminutive of Aleksandr (His full name is: Aleksandr "Sasha" Vitalyevich Tchernev-Marchant; Russian: Алекса́ндр Сáша Витальевич Чернев).
According to Utorak, Immortal dropped out of college. He confirmed this on his Sims 3 series here, around the 17:52 mark.
He is a Virgo (his birthday is September 1st, confirmed on his Twitter).
In the Behind the Cow Chop video: BREAKING DIRTY HABITS , Aleks talks about the first time he filmed something in public. He was in Boston recording a video for his music band until he was stopped by a police officer telling him that he needs a permit to film in the city. However, being 18 years of age at the time, he researched the cost of the permits only to discover they were a large some close to "A billion dollars" (Obviously they were a lot less, but he was only 18 and probably without any funds to pay for the permits).
The "HD" actually means Hot Dog, according to Kevin noted here.
Aleks had Dexter Manning live with him while they both were working for The Creatures. According to Dex, he had trouble "wanking off" in Aleks' house due to not having any tissues promptly stored in his guest room.
According to his former band, 7 Birches, Aleks' full name is "Aleksandr Vitaly." This is shown in the song called "Yet to Show" where Aleks sings for the majority of the song. However, it was revealed in the credits of Sarcasm w/ Seamus episode 1, that his real name is Aleksandr Marchant, possibly meaning Vitaly is a nickname or his birthname before being adopted and moving to America, possibly taking his adopted parents' surname.
He was the face that inspired a generation. (See Top Right)
A fan tweeted a picture to James in which Jensen Ackles and Jared Padalecki from the show Supernatural imitate the face. (See Bottom Right)
He played baseball for 8 years when he was younger.
He ran track in high school.
He stated that a 14 year old female fan asked him to sign her pants and underwear in one of his Killing Floor playthroughs.
On September 27, 2015 an unknown source released Immortal's Home address. Immortal tweeted about the situation telling people to not show up to his house because he "doesn't want to move to a gated community".
Prior to joining The Creatures and becoming friends with James, Aleks originally contacted James through AIM where James "ignored" or responded late to Aleks' responses.
During the first Cow Chop Panel during RTX 2016, Aleks stated that he was accused of kidnapping a girl due to some random guy making threats to a family and posting pictures as well as information of Aleks. Aleks received emails from the missing girl's Uncle saying, "Where in the hell did you take my niece'?" (Shown in a Screenshot Aleks showed in his THE KIDNAP STORY video). Aleks did not have any idea who this person was, again due to not knowing about what was going on. The issue was resolved, however Aleks did not receive any followup and/or personal apology from the family for the false accusations according to Aleks in his video and the First Cow Chop Panel during RTX 2016. He had fans inform him about what was going on Facebook since Aleks did not have a FB account. Fans showed him that the family were going to have an Amber Alert with Aleks' face. Memes of course derived from the incident however Aleks did produce a separate video uploaded on his personal channel explaining the accusation and the overall backstory of what occurred.
Also in THE KIDNAP STORY video, Aleks mentioned another story that some young girl showed up at his house randomly at 3 in the morning. The girl asked Aleks if "this is the right place"? Aleks asked if she was looking for someone in particular and she than stated that she "had to go". Aleks thought that that scenario was possibly because she was looking for her friend's house and probably got lost. He then checked throw his blinds to see if she left (He said he is a "creep") to go look for her friend's house. Instead he saw her "straight up dip" and leave the entire neighborhood in her car. The next day Aleks received a "long paragraph" with an explanation from the girl saying she was sorry that she showed up. This event happened because she was "cat-fished", meaning that she was fooled into hanging out with Aleks. This random guy, posing as Aleks, lined up Aleks' real information and tricked the girl into meeting him. Aleks is of course freaked out that people have his personal address.
Two days before Aleks uploaded the Kidnap Explanation Video, a random fan messaged Aleks on Instagram that his friend used Aleks' face for a fake account and got into trouble with a girl. This also got her parents and the police involved (They live in the Colorado area as well). The fan apologized for this mainly since he didn't want Aleks to get into trouble.
A common joke surrounding him is his "failed career" as a musician.