Allan Silver

"Hi, I got a distress call about someone needing a heroic rescue?"

- Allan (Help Wanted)

Dr. Allan Silver is a main character in the machinima Sandguardians, first appearing during a flashback scene in the episode Insight to the Past before becoming a regular in Season 3. Allan is a Guardian who specializes in stealth and infiltration. He is also best friends with Nash, Seal, and McGrath, having been partnered with Nash during his time as a scientist in the ONC.

Personality
Making a more prominent appearance during Help Wanted, Allan is shown to be a very friendly individual and is willing to go to great lengths to help his teammates. After Nash, Seal, Dax and Jason are captured by ONC soldiers, Allan is quick to save them, after receiving Nash's distress call. However, Allan is shown to be very blunt at times. When learning of Seal's second portion of the Life Saver, he scolds him for losing it. He then later scolds Seal again for nearly engaging in a fight with Legend, but attempts to talk to him afterward.

Allan also seems to care greatly for others, even those who he knows very little about. After rescuing the Sandbox troops from prison, Allan proceeds to give them all some insight on Seal's Life Saver and the Guardians' situation with Winters and the ONC. He then later tries to console Nash after Bernard insults her by bringing up McGrath's death. Ironically, Nash later ends up consoling Allan after the latter blames himself for doing nothing while McGrath was in danger. This self-blame carries over in Season 4 in which Allan continues to blame himself for failing to save Nash when she needed him.

Several of Allan's flaws begin to emerge in Seasons 3 and 4, specifically, his tendency to be very self-critical when he lets someone down. In Forward, Allan grows depressed upon reaching the Guardian base without Nash, Mickey, Bart, or Seal. In Catching Up, he constantly condemns himself for failing to help Nash and the Reds at DotCom and gives up on wearing Marilyn's new armor, which seems to be tied with his identity.

Allan also struggles with his identity and sexuality, as alluded to in Catching Up. As shown in the episode, Allan seems to have only shared his struggles with his friend and fellow Guardian Marilyn, who encourages him to be true to himself. Allan, however, feels it's too late due to their circumstances.

Skill
Allan is shown to be a skilled strategist, fighter, and pilot. He has no issues taking charge when the situation calls for it and can calm others down when they get emotional. In addition, Allan has great skills in stealth and infiltration, having been able to infiltrate both the ONC Prison and the ONC Research Lab while under heavy security.

One of Allan's greatest skills is his ability to gain the respect and trust of others, due to his humble and understanding nature. However, Allan is shown to be very hard on himself and struggles with self-compassion.

Nash
While he was a scientist in the ONC, Allan was partnered with Nash and the two grew a strong friendship, having worked at the ONC Scientific Innovation Complex. During Help Wanted Nash was shown to be very excited upon seeing Allan again, and Allan seemed happy to her as well. The two even made jokes to one another, signifying their close relationship.

Later on, after Allan learns of McGrath's death Nash consoles him. However, a strain develops in their relationship after Seal leaves without their knowledge. Allan suggests going after Seal to save him, not wanting to abandon another friend, but Nash argues against this, not wanting to deal with the emotions of finding another dead loved one. Because of their differing views, Allan departs to find Seal, leaving Nash behind and betraying her trust. Allan is later left feeling guilty of his actions.

McGrath
According to McGrath's message in Insight to the Past, Allan was McGrath's best friend during their time in the ONC and afterwards. Upon learning of McGrath's death, Allan felt extremely sad and guilty for not attempting to save him and vowed not to abandon another friend.

Seal
Having met through McGrath in the ONC, Allan and Seal are trusted friends and are shown numerous times to respect each other. Allan looks out for Seal's well-being and has saved him on two occasions. Seal is also shown to trust Allan's judgment and is willing to sacrifice himself for him.

Mickey
Despite being in different divisions at the ONC, Allan and Mickey are shown to be good friends and teammates, regularly getting along and encouraging each other in battle. Allan also seems to be close enough to Mickey to open up to him and Mickey has been shown to understand his struggles. This is evident in Second Chance, where Mickey understands Allan's reasoning for wanting to help Seal. Mickey later tells Allan to not return to DotCom, in order to keep the latter safe. While Allan listens to Mickey's advice, he is saddened for having to leave his friend behind.

Bartholomew
Allan's friendship with Bart is similar to his friendship with Mickey. Bart greatly trusts Allan's judgment and leadership though is a bit more reserved around him. When Allan attempts to sneak off to save Seal, Bart and Mickey stop him. After Allan explains himself, the two allow him to go, understanding his dilemma.

Marilyn
Allan seems to trust Marilyn greatly, implying that the two are close. In Catching Up, Marilyn allows Allan to vent about his guilt but tries to encourage him not to blame himself so much. She instead acknowledges admiration towards Allan for going to find Seal, stating that she wouldn't be able to do the same. Allan responds telling her that she's stronger than she thinks, showcasing the mutual respect the two have for one another.

Trivia

 * As stated by McGrath in Insight to the Past, Allan is McGrath's best friend.
 * Allan is first depicted in the Halo: Reach engine and sports a CQB helmet and default chest and shoulder pauldrons.