Louis

From Memory Alpha, the free Star Trek reference

For the alternative spelling of the name, see Lewis.

Louis was an old friend of the Picard family, especially Jean-Luc Picard.

Once he went on a cycling trip with the Bloom sisters and broke his leg on the trip, but later married both of the sisters. He was still married to one of them in 2367.

Picard described Louis as a "desperately poor swimmer".

In 2367, Louis was the supervisor of the Atlantis project. He wanted Picard to take lead of the project and even arranged a meeting with government officials for him, but ultimately Picard skipped the meeting and declined the offer. (TNG: "Family")

Louis, who was not given a last name, was played by Dennis Creaghan.