Helena/John
Helena knew, from Claudia, about the rift machine and its primary creators. Eric was previously deceased and Sheldon had died upon crossing into this dimension, which left John and Dom. She knew the intention was not to remain in this particular dimension longer than necessary and it would behoove them to offer her assistance.
She approached John when it appeared he had a brief moment. "John, a word, please?" she said, and at his acquiescense, she went on. "I wished to offer my services since we have come here with tragedy. Though advised not to speak fully with regard to Claudia's and my dimension, I am able to say that I have an extensive background in the sciences. I was the co-creator of the gun in my possession at the time of my arrival. Claudia also possesses similar skills. If I, or she, may assist in making our duration in this dimension remain short, please do not hesistate to recruit either of us."