Thomas Mark Harmon (born September 2, 1951) is American television and film actor.
 He has appeared in a wide variety of roles since the early 1970s.
Dean Cameron (born Dean Eikleberry; December 25, 1962) is an American television and film actor.
 He is known for his role as Francis "Chainsaw" Gremp in the 1987 Mark Harmon comedy "Summer School".
 He also played Dave Marshak in "Ski School" and "Ski School II".
 Cameron along with comedian Victor Isaac tour in a 2-person show called "The Nigerian Spam Scam Scam".
Let's Get Harry is a 1986 action film directed by Stuart Rosenberg.
 It stars Thomas F. Wilson, Michael Schoeffling, Glenn Frey, Rick Rossovich, Mark Harmon, Robert Duvall and Gary Busey.
 Rosenberg chose to credit the film to Alan Smithee, a pseudonym used by directors who repudiate their involvement in a film.
Weather Girl is a 2009 comedy film written and directed by Blayne Weaver.
 The film stars Tricia O'Kelley, Mark Harmon, Jon Cryer, and Enrico Colantoni.
Magic in the Water is a 1995 family film directed by Rick Stevenson and starring Mark Harmon, Joshua Jackson and Sarah Wayne.
 It is about a fictional lake monster in British Columbia.
 The film was distributed by TriStar Pictures and produced by Triumph Films.
Blackhawk Christian School, established in 1973 in northeastern Fort Wayne, Indiana, is a private K-12 school with an enrollment of approximately 750 students and is operated by Blackhawk Ministries.
 The school's motto is "Scholars' minds.
 Servants' hearts."
 Mark Harmon is currently the principal of the middle/high school, Tim Wiegand is principal of the elementary school, while Linda Pearson is the superintendent.
Summer School is a 1987 comedy film from Paramount Pictures, produced by George Shapiro and Howard West, directed by Carl Reiner, that stars Mark Harmon as a high school gym teacher who is forced to teach a remedial English class during the summer.
 The film co-stars Kirstie Alley and Courtney Thorne-Smith.
 The original music score was composed by Danny Elfman.
Joshua Browning Carter Jackson (born June 11, 1978) is a Canadian actor.
 He has appeared in primetime television and in over 30 film roles.
 His well-known roles include Pacey Witter in "Dawson's Creek", Charlie Conway in "The Mighty Ducks" film series, Peter Bishop in "Fringe", and Cole Lockhart in "The Affair".
 Jackson won the Genie Award for Best Performance by an Actor in a Leading Role for his performance in the Canadian independent film "One Week".
Eric Nelsen (born June 26, 1991) is an American television, film and broadway actor and producer.
 He is best known for his work in Hulu's revival of "All My Children" playing AJ Chandler and received a Daytime Emmy Award nomination for his work on the show.
 On stage Nelsen is internationally acclaimed for his portrayal of Brett Sampson in the original Broadway production of "13 The Musical" starring alongside Ariana Grande as well as starring alongside Gretchen Mol in "The Good Mother" produced by The New Group.
 On television Nelsen has starred alongside James Spader in "The Blacklist", Adam Driver in "Girls", Kevin Bacon in "The Following", Mark Harmon in "NCIS" and Tom Selleck in "Blue Bloods".
 On the big screen, Nelsen can be seen working alongside Academy Award winner, Liam Neeson in "A Walk Among the Tombstones".
I'll Remember April is a 1999 American family drama film starring Pat Morita, Pam Dawber, Haley Joel Osment, Mark Harmon and Yuki Tokuhiro.
 It was directed by Bob Clark.

Question: What is the nationality of this actor who appeared on "Dawson's Creek" and in the 1995 family film "Magic in the Water" alongside Mark Harmon and Sarah Wayne?
Answer: Canadian